G-SHOCK announces a new lineup of heavy-duty models that are great for wear in tough environments and as street fashion items as well. The industrial design motif of these models is created by a 10-sided bezel that resembles the shape of a nut. The bezel is secured by four screws for a tough and rugged look. Combination timekeeping is provided by analog hands along with a digital display for the ultimate in operational ease. The design of the hands and the graphic figures that appear in the digital readouts create a powerful face design that enhances readability. The band connection and all buttons have checkered surfaces that prevent slipping and contribute to operational efficiency. The GA900-4A features a black resin band and red bezel.
- Case / bezel material: Resin
- Resin Band
- Shock Resistant
- Mineral Glass
- 200m water resistant
- Super LED light
- Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds),
- afterglow
- World time
- 29 time zones (48 cities + coordinated universal time), daylight saving on/off,
- Home city/World time city swapping
- 1/100-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)
- 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: 7 years on CR2016
- Module: 5637
