Go bold with the GBA-900-1A — where fitness-focused technology meets G-SHOCK toughness.
Sporty, smart, and built for movement, the GBA-900-1A features a sleek black design with performance-driven functionality. Equipped with Bluetooth® connectivity and step tracking capabilities, it helps you stay on top of your fitness goals while maintaining the rugged durability G-SHOCK is known for. With its lightweight feel and modern design, this watch is perfect for active lifestyles and everyday wear.
Dial: Black dial with digital display and sporty accents
Case Diameter (L × W × H) MM: 51.3 × 48.9 × 16.6
Case Material: Resin
Bracelet: Resin band (Black)
Construction: Shock resistant
Power supply and battery life: Approx. 2 years on CR2025
Glass: Mineral glass
Gender: Men / Unisex
Water-Resistance: 200-meter water resistance
World Time
38 time zones (38 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching
Watch Features
Stopwatch:
1-second stopwatch
Measuring capacity: 99:59'59
Measuring modes: Elapsed time, split time
Timer:
Countdown timer
Measuring unit: 1 second
Countdown range: 60 minutes
Countdown start time setting range: 1 second to 60 minutes (1-second increments)
Alarm/hourly time signal:
5 daily alarms
Hourly time signal
Light
Double LED light (Super Illuminator)
Selectable illumination duration (1.5 seconds or 3 seconds), afterglow
Light color: LED: White
Calendar: Full auto-calendar (to year 2099)
Mute feature: Button operation tone on/off
Accuracy: Mobile link (auto time adjustment via Bluetooth®); ±15 seconds per month (without mobile link)
Other features:
Airplane mode
Step goal progress indicator
Vibration alert
12/24-hour format
Regular timekeeping:
Digital: Hour, minute, second, pm, month, date, day
