Slim, lightweight, compact watches with octagonal bezels and a monochromatic look. The new GMAS2100 series downsizes the popular GA2100 to create a simple and slim design. The octagonal bezel, flat face, simple bar hour markers, and carbon core guard structure that are distinctive features of the GA2100 are now available in a compact configuration. The GMAS2100-7A sports a classic white colorway with silver accents.
- Size of case : 46.2×42.9×11.2mm
- Total weight : 41g
- Case / bezel material: Carbon / Resin
- Resin Band
- Mineral Glass
- Neobrite
- Shock Resistant
- Carbon Core Guard structure
- 200-meter water resistance
- 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
