Casio G-Shock - GA-100WD-1A
Features
Go bold and confident with a strikingly straightforward G-SHOCK in high-contrast black and white. 
Beginning with a base of G-SHOCK jet black and then bring in a bright dial finished in brilliant white vapor deposition. The monochromatic statement is a study in contrasts—matte black against glossy white. This abundantly cool design is available in five different models.
Choose your favorite — the GA-700 with front button design, the GA-100 or GA-110 with large case, the triple-graph design of the DW-6900, or the GA-2100 with octagonal case.
Specifications
- Case / bezel material : Resin
- Resin Band
 
- Mineral Glass
 
- Shock Resistant
 
- Magnetic Resistant
- 200-meter water resistance
- Light
 LED light
 Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
 Light color  LED:Amber
- World time
 29 time zones (48 cities + coordinated universal time), daylight saving on/off, home city/world time city swapping
- Stopwatch
 1/1000-second stopwatch
 Measuring capacity: 99:59'59.999''
 Measuring modes: Elapsed time, lap time, split time
 Others: Speed (0 to 1998 units/hour), Distance input (0.0 to 99.9)
 Mach indicator (speed exceeding 1225 units/hour)
 
- Timer
 Countdown timer
 Measuring unit: 1 second
 Countdown range: 24 hours
 Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
 Other: Auto-repeat
- 5 daily alarms (with 1 snooze alarm)
- Hourly time signal
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Regular timekeeping
 Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (speed)
 Digital: Hour, minute, second, pm, month, date, day
 
- Accuracy: ±15 seconds per month
- Approx. battery life: 2 years on CR1220
- Size of case  :  55 × 51.2 × 16.9 mm
- Compatible band size  :  145 - 215 mm
- Total weight  : 72 g