GM-2100 Series GM2100B-4A

- Shock Resistant
- Mineral Glass
- Neobrite
- 200-meter water resistance
- Case / bezel material: Resin / Stainless steel

Specifications

- Resin Band
- Double LED light
LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
- World time
31 time zones (48 cities coordinated universal time), daylight saving on/off
- 1/100-second stopwatch
Measuring capacity:
00'00''00~59'59''99 (for the first 60 minutes)
1:00'00''~23:59'59'' (after 60 minutes)
Measuring unit:
1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, split time, 1st-2nd place times
- Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
- 5 daily alarms
- Hourly time signal
- Hand shift feature
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Button operation tone on/off
- Regular timekeeping
Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
Digital: Hour, minute, second, pm, month, date
- Accuracy: ±15 seconds per month
- Approx. battery life: 3 years on SR726W × 2
- LED:White