Tough Solar Power
Shock Resistant
200M Water Resistant
Full Auto EL Backlight with Afterglow
4 Daily alarms and 1 Snooze Alarm
Hourly time signal
Full auto-calendar (pre-programmed until the year 2099)
12/24 hour formats
Button operation tone on/off
Accuracy: +/- 15 seconds per month (with no signal calibration)
Battery power indicator
Power saving function
Storage battery: Solar rechargeable battery
Approx. battery life: 9 months on full charge (without further exposure to light)
Module: 3405
 
As an upgrade to it's predecessors, the new GWM500 add the ability to connect with the radio transmitter in China to update the watchs' time & date in addition to adding an additional 18 cities added to the world time mode, for a total of 48-cities. The watchs' time memo function has been replaced with a countdown timer. Black resin band digital watch with neutral face.