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2100 series Carbon core guard structure Resin band Mineral glass Shock resistant 200-meter water resistance 3 years battery life 31 time zones 1/100-second stopwatch Countdown timer 5 daily alarms Hourly time signal Double LED light Full auto-calendar Button operation tone on/off Accuracy: ±15 seconds per month 12/24-hour format Dimensions: L 48.5 x W 45.4 x H 11.8 mm Style: gskga2100bm-7a5 Color: Skeleton / Copper Material: Carbon / Resin
2100 series Carbon core guard structure Resin band Mineral glass Shock resistant 200-meter water resistance 3 years battery life 31 time zones 1/100-second stopwatch Countdown timer 5 daily alarms Hourly time signal Double LED light Full auto-calendar Button operation tone on/off Accuracy: ±15 seconds per month 12/24-hour format Dimensions: L 48.5 x W 45.4 x H 11.8 mm Style: gskga2100bm-7a5 Color: Skeleton / Copper Material: Carbon / Resin