Casio G-Shock G-Steel Men's Watch Solar Bluetooth Black GBM-2100-1AER Robust men's sports watch in an elegant design, quartz movement with analogue and digital display, Tough Solar solar drive, Bluetooth function Mobile Link, app connectivity functions: automatic time setting, reminders, phone finder, world time display of 38 time zones, automatic summer time changeover, stopwatch, lap/ Split time, countdown timer, 5 daily alarms, double LED lighting, backlight, fully automatic calendar (up to 2099), mute function, Energy saving function, battery level display, 12/24 hour format selectable, change between date/month display, black dial, indices and hands with luminous Neobrite, case made of stainless steel and resin, 4-fold screwed case back, shockproof, scratch-resistant mineral glass, br.