Invisible solar cells in the watch convert light into energy and supply all functions. A rechargeable battery provides the necessary capacity for operation in poor light conditions. water resistance, suitable for professional marine activity, serious surface water sports and skin diving. The bottom LCD is the primary display, with the time and running stopwatch or timer etc. The top panel contains supplementary information; such as the date, world time zone, a description of what mode you’re in etc. Between these panels are the Moonphase / tide / running seconds indicators. Radio-controlled Watch; Multi band 6 (additional way for time sync. This watch receives time calibration radio signals that keep the displayed time accurate)

We are also able to offer an exchange to a different product if required, please specify this when returning your product. There’s also a few discreet indicators dotted around, such as battery level, RC indicator, mute, auto illumination, and alarm. The 200m water resistance means that it’s perfectly capable of anything a normal person like you and I could throw at it; even scuba diving. Like the case, the strap is made of Urethane resin. This could easily be rubber but Urethane resin is more abrasion, sunlight and weather resistant. It also seems pretty resilient to oils as I accidentally got some sun cream on it and it wiped off pretty easily. Besides, this also means the case and strap match up perfectly.Indicates the level of the tide based on your home city location. You can calibrate this feature to be specific to a chosen coast line and even input a date in the future to get readings in advance. The resin housing is the ideal everyday companion. It is durable, lightweight and relatively insensitive to cold, heat or other external influences. Full Auto Light: In low light, the watch face will illuminate automatically when you tilt your wrist towards you, LED light, Selectable illumination duration (1.5 seconds or 3 seconds) After the Alert: The following operations are stopped to save power: all hand movement (excluding the day indicator), Bluetooth connection, if applicable, and alarms The dial is all digital of course. Some may be put off with that straight away. But don’t forget, this is a functional watch. The entire dial is a solar cell (apart from the LCDs), and you can see a subtle blue tint to it when the light hits it right.

Measuring Capacity: 24 hours, Measuring Modes: Elapsed time, split time, Measuring Unit: 1/100th second Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810. 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. What we like in GW-7900 *comments by experts with 10years experience in writing about Casio watches

Model Comparison

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 24 hours in advance. Ideal for people who need to take medicines every day or those who do interval training. Tough Solar (CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power) The strap is very soft on the skin, if you have it sized correctly you can wear it all day. It’s not that breathable though, and you find you get a bit of a sweaty wrist. 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. The markings in the bezel area are set into the plastic and filled with a light grey paint to make them readable. The moulding is pretty neat and accurate; there’s no sloppiness anywhere.

Multi-Band 6: Automatic Atomic Time updates are received overnight for exceptional accuracy (UK/ EU/ USA/ Japan/ China: home city must be set manually)Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours. A high-capacity solar-charging system harnesses the power of any light source for reliable watch operation with minimal impact to the environment.

Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties. Due to its oversized chunky design it may not be suitable for everyone, some people prefer smaller watches. The top of the case features 4 cool screws in the corners of the bezel. I assume they actually do something and hold the case together and are not just an aesthetic touch.

The strap and case do not have conventional lugs. The strap is secured into the lugs with screws either side, incorporating the wrist moulds. The section of strap that is connected is just the centre section, almost like a tab that is inserted into the lug. The illumination provides a bright green glow when you press the G button on the front. You can set the length of time it displays and also automatic activation when you raise your wrist.