Product Description
The GA2100-1A1 blends G-SHOCK’s original octagonal DNA with modern minimalism. Ultra-slim at just 11.8 mm and built with a Carbon Core Guard structure, it delivers outstanding strength, light weight, and the signature blackout styling that defines this fan-favorite model.
| Case & Exterior | |
|---|---|
| SKU | GA2100-1A1 |
| Case Size (L × W × H) | 48.5 × 45.4 × 11.8 mm |
| Weight | 51 g |
| Case & Bezel Material | Carbon / Resin |
| Band | Resin Band |
| Construction | Shock Resistant, Carbon Core Guard structure |
| Water Resistance | 200-meter water resistance |
| Power Supply & Battery Life | Approx. 3 years on SR726W × 2 |
| Glass | Mineral Glass |
| Compatible Band Size | 145 – 215 mm |
| Movement & Specifications | |
|---|---|
| World Time | 31 time zones (48 cities + UTC), daylight saving on/off |
| Stopwatch | 1/100-sec stopwatch (Elapsed, Split, 1st–2nd place) |
| Timer | Countdown timer (1 sec – 24 hrs, Auto-repeat) |
| Alarms | 5 daily alarms, Hourly time signal |
| Light |
Double LED light (Super Illuminator) Face & display illumination 1.5 s / 3 s selectable LED: White |
| Calendar | Full auto-calendar (to 2099) |
| Mute Feature | Button operation tone on/off |
| Accuracy | ±15 seconds per month |
| Other Features |
12/24-hour format Hand shift function Regular timekeeping (Analog + Digital) |
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