Casio G-Shock GA-2100WS-7A

• Case size (L× W× H): 48.5 × 45.4 × 11.8 mm
• Weight: 51 g
• Case and bezel material: Carbon / Resin　
• Band: Resin Band
• Construction:
Shock Resistant
Carbon Core Guard structure
• Water resistance: 200-meter water resistance
• Power supply and battery life: Approx. battery life: 3 years on SR726W X 2
• Glass: Mineral Glass
• Compatible band size: 145 to 215 mm
• Other: Neobrite
• World time:
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off
• Stopwatch:
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
• Timer:
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)
• Alarm/hourly time signal:
5 daily alarms
Hourly time signal
• Light:
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)
• Light color: LED:White
• Calendar: Full auto-calendar (to year 2099)
• Mute feature: Button operation tone on/off
• Accuracy: ±15 seconds per month
• Other features:
12/24-hour format
Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
Regular timekeeping:
Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
Digital: Hour, minute, second, pm, month, date