Casio G-Shock  -  GM-2100YMG-9A
Features
G-STEEL daring meets sophisticated gleam in monochromatic silver color scheme.
The monochrome aesthetic pairs a metal bezel colored silver with a newly developed tough silicone band in the same color. The surface of the band is protected with a urethane sheet finished with vapor deposition in silver to achieve a metallic glimmer in a band that feels great against the skin. Soft and comfortable to wear, with a glittery metal look, these timepieces are fashion items that take you wherever you want to go.
Choose your favorite — the iconic GM-2100 with octagonal bezel.
Specifications
- Case / bezel material: Resin / Stainless steel  Gold ion plated bezel
- Bio-based resin band
- Neobrite
- Shock Resistant
- Mineral Glass
 
- 200-meter water resistance
- 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)
- World time
 31 time zones (48 cities + coordinated universal time), daylight saving on/off
- Stopwatch
 1/100-second stopwatch
 Measuring capacity:
 00'00''00~59'59''99 (for the first 60 minutes)
 1:00'00~23:59'59 (after 60 minutes)
 Measuring unit:
 1/100 second (for the first 60 minutes)
 1 second (after 60 minutes)
 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 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
- 5 daily alarms
- Hourly time signal
- Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Button operation tone on/off
- Regular timekeeping
 Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
 Digital: Hour, minute, second, pm, month, date
- Accuracy: ±15 seconds per month
- Approx. battery life: 3 years on SR726W × 2
- Size of case : 49.3  × 44.4  × 11.8 mm
- Compatible band size  :  145 - 215 mm
- Total weight : 84 g
 