Description
Designed with a striking, industrial-cool aesthetic, the G-Shock GA-2100RC-1A brings a unique retro-rusty vibe to the iconic octagonal “CasiOak” lineup. This ultra-durable timepiece features a matte black resin bezel and band, beautifully contrasted by distinctive teal-colored hands and indices that mimic oxidized metal. Built with G-Shock’s legendary Carbon Core Guard structure, it delivers world-class shock resistance, a slim profile, bright double LED illumination, and a robust 200-meter water resistance rating.
Technical Specifications
- Model: GA-2100RC-1A
- Case dimensions (height x width x thickness): 48.5 × 45.4 × 11.8 mm
- Mass: 51g
- Case/Bezel Material: Carbon/resin
- Band material: resin
- Structure: Shock Resistant
Carbon Core Guard structure - Waterproof: 20ATM (200m) Water Resist
- Approx. Battery life: 3 years on SR726W X 2
- Crystal: mineral glass
- World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off
- Stopwatch: 1/100-second stopwatch- Measuring capacity: 59’59.99”
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 minute to 24 hours (1-minute increments and 1-hour increments) - Alarm/hourly time signal: 5 daily alarms (with 1 snooze alarm), Hourly time signal
- Sound and flash function: (flashes in conjunction with alarm/time signal/timer)
- 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
- Mute feature: Button operation tone on/off
- Calendar: Fully automatic calendar (pre-programmed to 2099)
- 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 - Warranty: 12 Months








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