casio pro trek solar

PRW-30 SERIES Triple Sensor | Tough Solar

An array of large metal buttons on the right provide one-touch access to compass, barometric pressure/altitude, and temperature readings that appear on the LCD. Icons on the face glass next to each of the buttons contribute to easy –to-understand, intuitive outdoor environment. The digital LCD uses a high-contrast bold font, which, in combination with an STN LCD, ensures improved visibility even under harsh sunlight.

TECHNOLOGY / DESIGN

Triple Sensor, Ver.3

Miniature built-in sensors take highly accurate readings of direction, atmospheric pressure/temperatures and altitudes and indicate the measurement values with an LCD. They detect changes in natural phenomena immediately to support users in making appropriate responses.

Tough Solar

This proprietary CASIO solar-powered battery-recharging system assures stable operation of various power-hungry functions, including dial lighting, alarms, stopwatches and measurement functions.

Large direct buttons

Designed for quick measurement with a single push, the buttons can be operated without taking gloves off.

Multi Band 6

This radio-controlled timekeeping technology can receive standard time-calibration signals from all 6 transmission stations worldwide and correct the time for the North American, European, Chinese and Japanese regions.

Auto Light Switch

For quick, easy data confirmation, even in the dark or with both hands occupied. You need both hands for many outdoor activities, and you don't always have one free to illuminate your watch face in low-light conditions. The Auto Light Switch solves this problem by illuminating the light whenever you turn your wrist to bring the watch into the viewing position.

STN LCD Panel

Display visibility has been improved by adoption of a dot matrix STN LCD panel. A hand retraction function is also installed to prevent overlapping hands from obstructing the LCD in the Timekeeping mode by temporarily retracting the hands from above the LCD.

Sunrise, sunset time display

Knowing the time remaining before sunset helps you to schedule climbs to assure a safe descent, or to determine the appropriate time to wake up or pitch a tent.

Atmospheric pressure tendency alarm

An atmospheric pressure tendency alarm has been installed to alert wearers to any notable change.

100-meter water resistance

Low-temperature resistant (–10°c/14°f).

Casio ProTrek PRW-6600 — Elegant and Sturdy with Solar Power

PRW-6600 Model Range *may be updated

*Want to be the first to know about new ProTrek Updates? Here we store all recent Monthly ProTrek Updates →

Quick Content Guide

• PRW-6600 Model Range *in different colors and bands
• General information about the watch *year of first release, model range etc.
• Enjoy Japanese Unique Features in PRW-6600! *key features of PRW-6600 series
• ProTrek PRW-6600 on the wrist   *only images and only on the wrist
• ProTrek PRW-6600 Watch Review *our detailed review of the watch
• The most distinctive specs *from our Editorial point of view

Other ProTrek PRW Watches *similar by price and functions but different by cases

• Official PRW-6600 Specs *all details and for base version PRW-6600Y-1
• PRW-6600 Comparison Table *with similar ProTrek Watches
• Recent News about PRW-6600   *the latest breaking news and videos

General Information

Return to the Content Guide ↑

Official Description from Casio. The new PRW-6600Y-2 features Triple sensor technology (altimeter, barometer and Compass), Multiband 6 Atomic time keeping and is equipped with Tough Solar charging. This watch is one of the most desirable timepieces in the Pro Trek line. The PRW-6600Y-2 uses Casio’s advanced SMART ACCESS system, which provides you with quick, intuitive access to all of the watch’s key functions using an electronic crown.

ProTrek PRW-6600 on the wrist!

Enjoy our PROTREK  PRW-6600 Watch Review

Let’s move on to the look of the PRW-6600YB-3ER, where you can also see a lot of visual improvements. At least I was surprised by the presence of Arabic indices at all time stamps [which cannot be said about “PRG. In this way, the manufacturer is trying to improve the readability of analog information and it certainly did [including thanks to the wide 51.6 × 51.5 × 13.6 mm case, which in principle has not changed compared to the PRG-650]. Read Full Review →

Feedback from users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc.

PROs + good price + is comfortable, easy to read + has great lume + the silicone band is quite comfortable + it is solar powered and it resets its time daily using radio time sources

CONs – the digital read-out window is of the “negative” type, meaning that it has lighter chararcters against a black background – the illuminator is not at all bright

The most distinctive specs of PRW-6600 *Editorial — 100-meter water resistance (good for swimming but not for deep diving) — Tough Solar (CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power) — Radio-controlled Watch; Multi band 6 (additional way for time sync. This watch receives time calibration radio signals that keep the displayed time accurate) — Low temperature resistant (stable operation of the watch is guaranteed even at a temperature of -20°C) — Digital compass (measures and displays direction as one of 16 points) — Thermometer (can measure and display the outside temperature in a range from -10 C to 60 C) — Barometer (measures the air pressures and displays tendencies in the weather) — Altimeter (The electronic mechanism “estimates” the altitude based on the air pressure) — Height Gain (The height gain sums all the meters you have climbed in a session, so that you can see at a glance the total ascent on a tour) — Smart Access (the system for analogue movements achieves multi-functionality and easy operability simultaneously through a combination of multiple motors and an electronic crown)

These are not all ProTrek PRW Series. Here is a list of All ProTrek PRW Watches →

Enjoy Japanese approaches to Travel and Functional ProTrek Watches!

ProTrek Philosophy . Every adventure needs a reliable partner. PRO TREK is exactly the kind of watch that you need to meet the demands of your interests. PRO TREK is equipped with functions such as solar power operation, a digital compass, an altimeter, a barometer and a thermometer. The combination of innovative technology, a robust precision movement and state-of-the-art design makes the PRO TREK the perfect companion for all adventures under the open sky. Mountain or valley? Forest or meadow? River or lake? No matter what awaits you, you will be well-prepared to make any rough terrain your own thanks to the PRO TREK. Experience for yourself how PRO TREK opens up new horizons while always pointing you in the right direction!

Tough Solar . The CASIO Tough Solar System is now so advanced that even the weakest light sources are sufficient to operate the watches. The solar cells are so small and inconspicuous that they can be integrated easily into every watch face design. An accumulator in solar watches saves “superfluous” energy and releases it when the watch is in darkness. The accumulator is charged automatically and does not require manual activation.

RADIO WATCH TECHNOLOGY . The advantages of radio-controlled watches are obvious: Once they have been set to the relevant time zone, they always display the exact local time. All CASIO radio watches receive signals almost anywhere in Europe. Some models even receive signals in North America, parts of Canada and Mexico (the radio tower in Fort Collins sends signals for a radius of up to 3200 km) and even in Japan or China. In Europe, the change from summer to winter time is also completely automatic.

SMART ACCESS. Quick Access to Important Functions With its electronic crown, the innovative Smart Access system provides intuitive access to key functions. By rotating and pressing the crown, the user can switch between individual features such as the altimeter or alarm, and settings can be adjusted quickly and directly. The Smart Access system is protected by a crown switch locking feature, preventing the watch from switching unintentionally to another mode.

Triple Sensor . PRO TREK watches are equipped with the latest Triple Sensor, version 3 technology, making them even more accurate than before. Three highly sensitive, extremely small sensors measure with absolute precision and instantly display changes in your environment. The precision of the digital compass, altimeter, barometer and thermometer is only possible with the Triple Sensor technology. At the same time, the three layer sensor is 95% smaller and consumes 90% less energy than before.

Altimeter. For all those who set their sights high The built-in altimeter uses a pressure sensor to measure the current air pressure. The measured air pressure is then used to provide an “estimate” of the current altitude. The electronic mechanism in the watch is pre-programmed with “ISA values” (“International Standard Atmosphere”) used to convert pressure values into altitude values. The air pressure and temperature generally become lower as the altitude increases. These values define the connection between altitude, air pressure and temperature.

Barometer. The barometer measures the air pressures and displays tendencies in the weather. The higher a person goes (ascent/terrain), the lower the barometric pressure will be. An increase in air pressure usually signifies an improvement in the weather. A decrease in air pressure usually means that bad weather is on its way. The air pressure is displayed with an accuracy of 1 hPa (hectopascals). The barometer can measure and display a range from 260 hPa to 1100 hPa.

Digital Compass. The PRO TREK digital compass shows 16 compass points. The direction of magnetic north and the bearing are calculated by the compass’s directional sensor The directional sensor consists of two rectangular coils that detect slight tensions created by the earth’s magnetic field. Depending on the position and direction, these tensions vary in intensity. There is a non-magnetic resistance between the two coils, which absorbs the subtle changes in tension. With each new position, the values that are measured by the resistance change. A microprocessor converts the measurements so that they can be displayed clearly on your watch.

Thermometer. The thermometer is used to measure the outside temperature. The temperature is displayed with an accuracy of 0.1 °C. The thermometer can measure and display a range from -10.0°C to 60.0°C.

WATERTIGHTNESS. The watertightness of the CASIO watches complies with DIN 8310 and ISO 22810. These standards describe the various classes of watertightness and the test procedure used to determine watertightness. These standards apply to the general wristwatch usage. Watches with metre indications for watertightness cannot be used immediately in this water depth, however, as water resistance metre indications are merely a pictorial representation of the test pressure. A wristwatch withstands the impact of water at the static pressure specified on the watch (e.g. 10 bar) and the theoretical immersion in water to the specified depth.

Official PRW-6600 Specs / Features *for base version PRW-6600Y-1

• Full-Auto LED light A twist of the wrist in weak light conditions automatically lights up the display backlight.
• Low-temperature resistant (-10 °C) Even temperatures as low as -10 °C have no effect on this watch.
• Solar Power A solar cell provides power for operation.
• Radio signal reception (EU, USA, Japan, China) Whether in Europe, North America and Japan or in the outer reaches of Canada, Central America and China – once the watch has been set to the local time, it receives the relevant signal and shows the correct time wherever you are. In many countries, it also sets itself automatically to summer and winter time.
• Neo-display A luminous coating provides long-term illumination in the dark after only a short exposure to light.
• Barometer (260 / 1.100 hPa) A special sensor measures the air pressure (measuring range: 260 / 1100 hPa) and presents this on the display in the form of a symbol. This enables early detection of weather trends.
• Thermometer (-10°C / +60°C) A sensor measures the ambient temperature around the watch and displays it in °C (-10°C /+60°C).
• Digital-compass A built-in direction sensor detecs the magnetic north.
• 10,000 m Altimeter A pressure sensor detects changes in the air pressure and converts the result into an altitude up to 10,000 m.
• Height Gain The height gain sums all the meters you have climbed in a session, so that you can see at a glance the total ascent on a tour.
• Altimeter data memory Depending on the model, up to 40 sets of elevation data can be stored in the watch’s data memory and re-accessed at any time. Each of these data sets consists of a measured altitude as well as the date and time. In addition to the individual altitudes, the maximum and minimum altitudes during a measurement are also stored.
• World time function Displays the current time in major cities and specific areas around the world.
• Stopwatch function – 1/100 sec. – 24 hours Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours.
• Timer – 1/1 min. – 1 hour For fans of precision: the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. The time can be set to the nearest minute and up to 1 hour in advance.
• 5 daily alarms The daily alarm reminds you about recurring events with an acoustic signal at the time you have set. This model has 5 independent alarms for flexible reminders of important appointments.
• Automatic hand adjustment The automatic hand adjustment function checks the home position of the hands every hour and corrects it if necessary — either by adjusting e.g. from shocks or using the influence of magnetism.
• Button tones on/off The button tones for using the mode button can be turned off. This means that the watch no longer beeps when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated.
• Hand Moving Function With a push of a button, hands are moving and permit a free visibility of functions like stopwatch or date.
• Crown button lock Secures the crown button from accidental change to another mode of operation.
• Smart Access Technology Smart Access makes it easy to operate multi-function watches. Simply pulling out and rotating the crown provides intuitive control over all functions
• Automatic calendar with Date, Day and Month Once set, the automatic calendar always displays the correct date.
• 12/24-hour timekeeping Times can be displayed in either a 12-hour or 24-hour format.
• Mineral glass The tough mineral glass resists scratching.
• Bezel with IP Finish The bezel of the watch is elaborately coated according to the so-called “ion plating” process and offers the advantage of increased scratch resistance
• Resin band Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties.
• Battery level indicator An indicator shows the current battery level.
• Water resistance classification (10 bar) Perfect for swimming and snorkelling: the watch is water resistant to 10 bar according to ISO 22810.
• Dimensions (H x W x D) 51,6mm x 51,5mm x 13,6mm
• Weight approx. 80 g

PRW-6600 Comparison Table with similar PROTREK Watches

• [ProTrek 2022] PRW-6630NA-1A3 x NANGA — Authentic Outdoor Gear
• [ProTrek Review] PRW-6600YB-3 — for triple sensor fans

All Casio PRW-6600 News →

You ask, we answer…

CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power.

It’s the electronic mechanism that “estimates” the altitude based on the air pressure.

It measures and displays direction as one of 16 points.

It measures the air pressures and displays tendencies in the weather.

Can’t find a ProTrek of your dream? There are more watches!

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Explore. Inform. Conquer. Bluetooth, Atomic, and Solar sport watches equipped with Sensor Technology perfect for hiking and trekking as well as scuba diving and sailing!

Casio’s PRO TREK Smart line of watches is geared for outdoor enthusiasts. Powered by Wear OS by Google, these timepieces are equipped with a variety of features ideal for outdoor adventures including GPS, Location Memory, Moment Setter, and more. These timepieces also boast Casio’s Triple Sensor technology, in addition to a dual-layer LCD and water resistance. Casio’s PRO TREK Smart line offers rugged, stylish and versatile timepieces with features that enhance any outdoor experience. For additional information on Casio’s PRO TREK Smart line of timepieces, please visit: http://wsd.casio.com/us/en/ .

Introducing the new PRW61, the first Casio watch to be made with biomass plastics sourced from renewable organic substances.

Introducing the 200-meter water-resistant Bluetooth® PRO TREK PRTB70 equipped with functions specially designed for fishing.

The evolution of PROTREK never stops. Introducing a new green colorway to the PRG240 line, this model embody some of the very best in functional beauty and ease of operation that modern technology has to offer.

PRW6600Y-1A9

The new PRW-6600Y-1A9 features Triple sensor technology (altimeter, barometer, and Compass), Multiband 6 Atomic timekeeping and is equipped with Tough Solar charging.

The PRT-B50T features a light grey coloring, which is offset by an orange second hand and north indication on the large rotary bezel that not only enhance visibility but also add attractive accents

PRO TREK's ability to combine the best that technology has to offer and innovative designs has made it the timepiece of choice for climbers, hikers, campers, and other outdoor enthusiasts.

This watch uses Casio's advanced SMART ACCESS system, which provides you with quick, intuitive access to all of the watch's key functions using an electronic crown.

This new addition to the PRO TREK Multi-Field line comes with a highly readable STN LCD that enhances readability.

Introducing the new night safari concept models for the PRG650 line of Protrek watches. The colors and designs of this new model all were specially selected for the night time outdoor scene.

Triple Sensor Version 3 is the advanced CASIO original technology that makes it possible to pack sensors 95% smaller than those of previous models into a totally new type of compact PRO TREK.

Introducing the Solar Powered PRG270 which incorporates Casio’s new Triple Sensor Version 3 engine.

Introducing the new Pro Trek PRW2500, a high performance tool developed under the supervision of meteorologists to take on challenging environments.

Constantly evolving and improving the PRO TREK lineup, Casio introduces the PAG240T-7, a welcome upgrade to the legendary PAG40.

Introducing the Solar Powered PRG270 which incorporates Casio's new Triple Sensor Version 3 engine.

Introducing Triple Sensor Version 3, advanced CASIO original technology that makes it possible to pack sensors that are 95% smaller than those of previous models into a totally new type of compact PRO TREK.

Black Pathfinder Watch featuring Tough Solar, Digital Compass, Altimeter, Barometer and Thermometer with a Resin Band.

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Casio Men's 'PRO TREK' Solar Powered Silicone Watch, Color:Black (Model: PRG-650Y-1CR)

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From the manufacturer

Casio Men's 'PRO TREK' Solar Powered Silicone Watch, Color:Black (Model: PRG-650Y-1CR)

Introducing the new night safari concept models for the PRG650 line of Protrek watches. The colors and designs of this new model all were specially selected for the night time outdoor scene. The outside of the band and the face of the model is black. The design of this model is stylish and subdued, without sacrificing the readability required during night time activities. The PRG650Y model come with Dura-soft bands that incorporate silicon materials that improve durability. The inside of the band is luminescent, so it emits a faint glow during night activities.

Function-wise, it is equipped with Neon Illuminator to provide easy reading of the time and function modes, even in the dark. Other basic functions include Triple Sensor (bearing, altitude/barometric pressure, temperature), one-touch measurement button, Tough Solar, and more. Movable lug components add to a better fit and more comfort. Everything about these models is designed and engineered to create functions and designs for night time outdoor activities.

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Product description.

Introducing the new night safari concept models for the PRG650 line of Protrek watches. The colors and designs of this new model all were specially selected for the night time outdoor scene. The outside of the band and the face of the model is black. The design of this model is stylish and subdued, without sacrificing the readability required during night time activities. The PRG650Y model come with DURA-SOFT bands that incorporate silicon materials that improve durability. The inside of the band is luminescent, so it emits a faint glow during night activities. Function-wise, it is equipped with Neon Illuminator to provide easy reading of the time and function modes, even in the dark. Other basic functions include Triple Sensor (bearing, altitude/barometric pressure, temperature), one-touch measurement button, Tough Solar, and more. Movable lug components add to a better fit and more comfort. Everything about these models is designed and engineered to create functions and designs for night time outdoor activities.

Introducing a night safari concept model for the lineup of Triple Sensor Version 3 PRO TREK models. The outside of the bands and the faces of all black. The designs of these models are stylish and subdued, without sacrificing the readability required during night time activities. The PRG-650YBE/650Y models feature ion-plated bezels. The PRG-650Y/650 models come with DURA-SOFT bands that incorporate silicon materials that improve durability. The inside of the band is luminescent, so it emits a faint glow during night activities. Function-wise, they are equipped with Neon Illuminator to provide easy reading of the time and function modes, even in the dark. Other basic functions include Triple Sensor (bearing, altitude/barometric pressure, temperature), one-touch measurement button, Tough Solar, and more. Movable lug components add to a better fit and more comfort. Everything about these models is designed and engineered to create functions and designs for night time outdoor activities.

Product specifications

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Casio Men's 'PRO TREK' Solar Powered Silicone Watch, Color:Black (Model: PRG-650Y-1CR)

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Review of the Casio Pro Trek Wristwatch

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🟢 Any good?

• Is Discontinued By Manufacturer ‏ : ‎ No
• Product Dimensions ‏ : ‎ 1 x 1 x 1 inches; 2.8 ounces
• Item model number ‏ : ‎ PRG650Y-1
• Department ‏ : ‎ unisex-adult
• Batteries ‏ : ‎ 1 CR2 batteries required. (included)
• Date First Available ‏ : ‎ October 9, 2017
• Manufacturer ‏ : ‎ Casio
• ASIN ‏ : ‎ B075YP2RCV
• Country of Origin ‏ : ‎ China
• #1,182 in Men's Wrist Watches

Customer reviews

Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.

To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.

Customers say

Customers like the quality, appearance, performance, comfort, and light of the watch. For example, they mention it's tough as nails, looks really good, and professional. Some appreciate the glow in the dark wristband and auto light.

AI-generated from the text of customer reviews

Customers like the quality of the watch. They say it's tough as nails, amazing, and a handy watch. Some mention it keeps accurate time and has 5 alarms, timers, and pressure gauges.

"...Throw in 5 alarms, timer, stopwatch, world time , and 100m water resistance and you have a do-it-all tool...." Read more

"...As others have observed, the band feels very comfortable and durable . Overall a great product and worth the price paid." Read more

"...Beautiful classy, yet rugged , appearance.The illumination and backlight are ridiculously awesome.Strap is comfortable..." Read more

"...other bells and whistles you can enjoy on the watch, such as alarms, timers and pressure gauges. It's kind of an elegant, geek. timepiece." Read more

Customers like the appearance of the watch. They mention that it glows very bright, looks really good, and professional. They also love the color and the glow in the dark wristband. They appreciate the simple, user-friendly display and the stealth look. Overall, most are satisfied with the quality and functionality of the product.

"...My favorite aspect of this watch is the stealth look - the band, dial, and case are shades of black and gray, while the hands are bright white...." Read more

"Really happy with this purchase - this is a great looking watch !..." Read more

"The feel, look , and operations are top notch! Been looking for something like this for a long time...." Read more

"... Beautiful classy , yet rugged, appearance.The illumination and backlight are ridiculously awesome.Strap is comfortable..." Read more

Customers like the performance of the watch. They say the functions are great, the operations are top notch, and all the features work out of the box. Some customers mention that the compass works flawlessly, and the watch works great when swimming, camping, at night, and as a timer.

"...It's as fully-featured as a G-Shock, but looks less industrial and more "grown up"...." Read more

"...The backlight function works really well - but it clicks off automatically after a couple seconds even while you're holding the button down...." Read more

"The feel, look, and operations are top notch ! Been looking for something like this for a long time...." Read more

"...All viewing angles are sharp and crisp. So far, all alto and barometer functions are perfect ...." Read more

Customers are satisfied with the comfort of the watch. They mention that the silicon strap is extremely comfortable and allows the band to feel softer. They also say that it has a good feel on the wrist and doesn't require charging.

"...As others have observed, the band feels very comfortable and durable. Overall a great product and worth the price paid." Read more

"...The band is comfortable , and while not a necessity under any means, the part that contacts your skin glows in the dark for a bit which is oddly..." Read more

"...keep it just because it is so cool looking, has a good feel on the wrist, doesn't require charging , and has enough technological niftiness to be fun..." Read more

"...It is a big watch, but very light weight and extremely comfortable . I’m talking great pair of shoes just right comfortable...." Read more

Customers like the light of the watch. They mention that it glows very bright, has high visibility in light, and has a neon luminiscence in the dark. The underside glows a soft neon green, and the handy and number indicators glow. The luminescent band is interesting and is curious how long it will retain the lume. Overall, customers say the watch is a great overall product and the automatic night light is handy.

"...band, dial, and case are shades of black and gray, while the hands are bright white . The hands are easy to read, the dial a little less so...." Read more

"...it actually illuminates your surroundings a bit , which is pretty and could be useful...." Read more

"...The illumination is top notch and the hour hands turn on with the LED backlight. All viewing angles are sharp and crisp...." Read more

"...The light can light your path in the dark too - enough light to show a 2-3’ proximity around yourself...." Read more

Customers are satisfied with the value of the watch. They mention it's worth the price, has amazing quality for the price and is a good purchase. Some say that the seller was awesome.

"...Overall a great product and worth the price paid ." Read more

"...But this one is worth every penny ...." Read more

"...It's pretty accurate . Definitely worth the price and the owners Manual is a must read real deal casio!! Love my watch" Read more

"...Second watch works great! Stylish watch with extra setting. Good purchase . Let’sHope it works good" Read more

Customers are mixed about the accuracy of the watch. Some mention that it has incredible accuracy, while others say that it's not very accurate. The barometer and altimeter are both inaccurate. Some customers also say that they cannot calibrate the thermometer.

"...The compass was even calibrated correctly out of the box...." Read more

"...The compass on the 650 has 11 degrees of accuracy . Good but not great...." Read more

"...The temperature is utterly useless, the compass is not very accurate , but have enjoyed the altitude a lot, the time display and date options, the..." Read more

"The casio pro trek is a master piece. Accuracy and functionality is superb " Read more

Customers are mixed about the ease of use. Some mention that the watch is very functional and simple to use, with clear instructions. They also say that the functions are easy to operate. However, others say that it's hard to navigate and not easy to set up. The directions could be more clear.

"...Hands align perfectly with the markers and digital time. Navigation is easy once past the initial learning curve..." Read more

"...The learning curve is brief if you’re familiar with Casio digital watches. Adding the crown to setup is that stumbling block...." Read more

"...But this one is worth every penny. A little tough to get everything set but there is videos on YouTube that will teach you how to get everything set..." Read more

"...Even as complicated as it is to set, it's easy as pie to use , long as you've had a chronograph/generic electronic watch before...." Read more

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