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 GA900A-1A9 model comes with a yellow resin band.

• 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