G-SHOCK GA-2100-7A - Analog-Digital Octagon
A white band with a black face is the combination people reach for when they want a G-SHOCK that does not read as a sports watch from six feet away.
The GA-2100-7A is part of the 2100 Series, built around a Carbon Core Guard case that uses carbon-reinforced resin to hold the module safe in a package under 12 mm deep. That structure is what let Casio drop the bulk without dropping the shock rating.
White resin case and band with a black face, so the numerals and hands sit hard against the dial. The case is 45.4 mm across, 11.8 mm deep, 51 grams. Skeleton hands run over an LCD, lit by a double LED. Module 5611 holds 31 time zones, a 1/100-second stopwatch, a countdown timer and five alarms, three years to a battery, fifteen seconds a month. 200 m water resistant.
Clean and light, and the easiest 2100 to wear with something other than a t-shirt.
Perfect for: white G-SHOCK watches, thin octagonal analog-digital watches, summer sports watches.
Specifications
- Collection
- 2100 Series
- Case Diameter
- 45.4 mm
- Case Thickness
- 11.8 mm
- Case Material
- Carbon / Resin
- Crystal
- Mineral Glass
- Water Resistance
- 200 m (20 ATM)
- Dial Color
- Black
- Movement
- Quartz
- Caliber
- Casio module 5611
- Power Reserve
- 3 years on SR726W X 2
- Functions
- World time, Stopwatch, Countdown timer, Alarm, Auto calendar
- Strap / Bracelet
- Resin Band
- Strap Color
- White
- Reference
- GA-2100-7A
- Released
- 2021-08-06
- Case Size
- 48.5 x 45.4 x 11.8 mm
- Weight
- 51 g
- Construction
- Shock Resistant; Carbon Core Guard structure
- Band Size
- 145 to 215 mm
- Power
- 3 years on SR726W X 2
- Accuracy
- ±15 seconds per month
- Calendar
- Full auto-calendar (to year 2099)
- Illumination
- 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
- 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
- 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
- 5 daily alarms; Hourly time signal
- Other Features
- 12/24-hour format; Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.); Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) Digital: Hour, minute, second, pm, month, date