The G-Shock GM2100B-4 Metal Covered 'CasiOak' is a sleek and versatile timepiece. With a compact 49.3×44.4×11.8mm case and 72g weight, it's comfortable for daily wear. Its resin/stainless steel construction offers durability, while being shock-resistant and water-resistant up to 200 meters. Powered by SR726W X 2 batteries, it provides approximately 3 years of battery life. Features include world time for 31 zones, stopwatch, timer, and alarm. The double LED light ensures visibility in any condition. With a full auto-calendar, mute feature, and hand shift function, it's convenient and accurate. Whether for work or play, the GM2100B-4 is a reliable choice for any occasion.

- 49.3×44.4×11.8mm Case Size
- 72g Weight
- Resin/Stainless steel Case and Bezel
- Resin Band
- Shock Resistant
- 200 Meters Water Resistant
- Approx. battery life: 3 years on SR726W X 2
- Mineral Glass
- World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off
- Stopwatch
- Timer
- Alarm/hourly time signal
- 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)
- Calendar: Full auto-calendar (to year 2099)
- Mute feature: Button operation tone on/off
- Accuracy: ±15 seconds per month
- 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