
Product Description
Celebrate 50 years of Casio watches with the commemorative G-SHOCK GMC-B2100ZE — a full-metal chronograph that captures Casio’s passion for innovation and craftsmanship. The black and gold design symbolizes the spark of creation, featuring a gold “50th ANNIVERSARY” engraved link on the ion-plated band and binary-printed dial details representing the journey from “0” to “1.” With a sleek octagonal screw-down crown, solar power, and advanced Bluetooth® functionality, this model unites heritage and technology in a timeless expression of resilience and design excellence.
| Case & Exterior | |
|---|---|
| Case Size (L× W× H) | 51.3 × 46.3 × 12.4 mm |
| Weight | 171 g |
| Case and 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: Connects to a smartphone and automatically adjusts the time |
| Power Supply & Battery Life | Tough Solar (Solar powered) |
| Country of Origin | Japan |
| Glass | Mineral Glass |
| Crown | Screw Lock Crown |
| Surface Treatment | Black ion plated case and band |
| Compatible Band Size | 150 to 205 mm |
| Other | Neobrite |
| Movement & Specifications | |
|---|---|
| Smartphone Link | Bluetooth® connectivity via CASIO WATCHES app — auto time adjustment, world time, phone finder, and easy watch setting. |
| World Time | Dual time (Home City time swapping) |
| Stopwatch | 1-second stopwatch; measuring capacity: 23:59'59; modes: elapsed time, split time |
| Timer | Countdown timer, 1-second unit, range: 24 hours, start setting range: 1 minute–24 hours |
| Alarm/Hourly Signal | Daily alarm |
| Light | LED light (Super Illuminator) with afterglow |
| Calendar | Full auto-calendar (to year 2099) |
| Energy Saving Feature | Power Saving (hands stop to save power when left in the dark) |
| Battery Display/Alert | Battery level indicator |
| Run Time |
5 months (normal use, no light exposure) 18 months (dark storage with power save function on) |
| Accuracy | ±15 seconds per month (without mobile link) |
| Regular Timekeeping |
Analog: 3 hands (hour, minute, second) 3 dials (mode/battery, dual time, day indicator) |
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