- As an upgrade to its 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. Multi-Band 6 Atomic Timekeeping. 48-City World Time Countdown. GWM500A1
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