My own collection of Casio G-Shock Gravitymaster GW-3000BD-1A (also known as the "Gravity Defier" or "Sky Cockpit" series)
Specifications
Module Number: 5121
Power Source: Tough Solar (solar charging system powered by light)
Timekeeping: Multi-Band 6 atomic timekeeping (automatically calibrates time via radio signals)
Durability: Resistant to centrifugal gravitational force (up to 15G), vibration, and high shocks.Water Resistance: 200 meters (20 bar)
Materials: Stainless steel and resin composite case with a black ion-plated stainless steel band.Dimensions: 52.5 mm × 49.8 mm × 15.5 mm (Weight: ~148g)
Additional Functions: World time (29 time zones), 1/100-second stopwatch, daily alarm, power-saving mode, and full auto-calendar.
ORIGINAL