For Non-Stop, Self-Adjusting performance, the new GWM850 delivers Multi-Band 6 Solar Atomic technology with legendary shock & water resistance. So whatever life throws at you, you can count on G-Shock to deliver. Also equipped with a Rally Mode timer (allowing for simultaneous starting of stopwatch and linked timer), 4 daily alarms & 1 snooze alarm and 12/24 Hr. formats, you're more than ready. White resin band with a neutral face and a digital dial code.

The atomic timekeeper function receives time calibration radio signals automatically up to six times a day which keep the displayed time accurate, alsohas a manual receiver function; the signal received for the US is WWVB at a frequency of 60 kHz, UK is MSF at 60kHz, Germany DCF77 at 77.5kHz, Japan JJ40/JJY60 and China BPC at BPC 68.5kHz, world time with 29 time zones (48 cities+ Universal Coordination Time), city code display, and daylight saving on/off function, watch has full auto EL backlight with afterglow making it one great watch in low light conditions.
Four multi-function daily alarms and one snooze alarm which is great when you travel and need to get up on time, hourly time signal, and a 1/100 second stopwatch with a measuring capacity of 23:59'59.99". Stopwatches have measuring modes for elapsed time, split time, and 1st and 2nd place times. A countdown timer with measuring unit of one second and an input range of one minute to 24 hours one minute increments and one hour increments.

Watch is equipped with full auto-calendar (pre-programmed until the year 2099),12/24 hour formats, button operation tone on/off, and watch is accurate +/- 15 seconds per month. The storage battery is a CTL 1616 solar rechargeable battery.There is a battery power indicator, a power saving function, and an approximate battery life of 7 months on a full charge without further exposure to light. This tough solar powered watch is shock, mud (case and buttons are sealed to prevent mud, dirt, and dust from getting into the watch) resistant, and water resistant to 660' (200 meters).

Equipped with a flash alert; flashes with buzzer that sounds for countdown timer, up alarm, countdown timer progress, beeper and stopwatch auto start. Rally mode a time based navigation function for target timer linked to stopwatchmakes this mode a powerful tool for time controlled races, it measures in units of 1/10 seconds with a measuring capacity of 99:59'59.9", a target time measurement unit of one second, and target time setting unit of one minute. The target time setting range is 23:59 (for 24 hours, set at 0:00) and a preset target time of: 10.

A recall mode with up to 30 records each including time stamps and special stagemeasured time (month, date, hour and minute). Total time display range is 2999:59'57.0". Watch has a Black Resin Band and a Digital Dial Code.

Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China)
Tough Solar Power
Shock Resistant
660' (200 meters) Water Resistant
Full Auto EL Backlight with Afterglow
4 Multi-function Daily Alarms and 1 Snooze Alarm
Hourly Time Signal
Flash Alert
Flashes with buzzer that sounds for countdown timer time up alarm, countdown timer progress beeper and stopwatch auto start
Rally Mode
Time based navigation function for target timer linked to stopwatch make this mode a powerful tool for time controlled races
World Time
1/100 second stopwatch
Battery power indicator
Power saving function
Auto Calendar (pre-programmed until the year 2099)
12/24 Hour formats
Button Tone Operation On/Off
Accuracy: +/-15 seconds per month (with no signal calibration)
Storage Battery: CTL1616
Approx. battery life: 7 months on full charge (without further exposure to light)
Module 3155
Size of case/total weight 51.5 x 42.5 x 13.9mm / 56g