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Product Description
The G-SHOCK GM-B2100SD-1C is a full-metal octagonal model combining premium stainless steel construction with advanced solar, Bluetooth®, and multi-function capabilities. Built in Japan, it blends rugged shock resistance with refined finishing, making it a modern evolution of the iconic 2100 “CasiOak” silhouette.
| Case & Exterior | |
|---|---|
| SKU | GM-B2100SD-1C |
| Case Size (L × W × H) | 49.8 × 44.4 × 12.8 mm |
| Weight | 165 g |
| Case / Bezel Material | Stainless steel |
| Band |
Stainless steel band Solid band One-touch 3-fold clasp |
| Construction | Shock resistant |
| Water Resistance | 200-meter water resistance |
| Time Adjustment |
Bluetooth® auto time adjustment Smartphone connection |
| Power Supply | Tough Solar (solar powered) |
| Country of Origin | Japan |
| Glass | Mineral Glass |
| Back Plate | Screw Lock Back |
| Compatible Band Size | 150–205 mm |
| Other | Neobrite |
| Movement & Specifications | |
|---|---|
| Smartphone Link |
Mobile link via Bluetooth® App: CASIO WATCHES Auto time adjustment Easy watch setting ~300 world cities Time & place log Reminder Phone finder |
| World Time |
38 time zones Daylight saving on/off Auto DST switching Home/World time swap |
| Stopwatch |
1/100-sec stopwatch Elapsed & lap/split Up to 23:59'59 |
| Timer |
Countdown range: 60 minutes 1-second increments 1-second & 1-minute settings |
| Alarms |
5 daily alarms Hourly time signal |
| Light |
Double LED (Super Illuminator) 1.5s / 3s duration LED color: White |
| Calendar | Full auto-calendar (to 2099) |
| Energy Saving | Power Saving (display off in dark) |
| Battery |
Battery level indicator 7 months (normal use) 18 months (power save) |
| Accuracy | ±15 seconds per month (no link) |
| Other Features |
Hand shift function 12/24-hour format Date/month swap Multi-language day display (6 languages) |
| Regular Timekeeping |
Analog: Hour, minute (20-sec step), mode dial Digital: Hour, minute, second, pm, month, date, day |
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