Casio G-shock GMD-S6900MC-1 SUMMER SALE Never requires battery or battery

Never requires battery or battery replacement

18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Others: speed (0-1998 units / hour)

Scuderia Toro Rosso 標誌（錶面、背蓋）

31 time zones (48 cities + UTC)

Casio G-shock GMD-S6900MC-1 SUMMER SALE Never requires battery or batterySpecifications Case bezel material: ResinResin BandShock ResistantMineral Glass200 meter water resistanceElectro luminescent backlightSelectable illumination duration (1. 5 seconds or 3 seconds), afterglowFlash alertFlashes with buzzer that sounds for alarms, hourly time signal, countdown timer progress beeper, and stopwatch auto startWorld time29 time zones (48 cities), daylight saving on off1 100 second stopwatchMeasuring capacity: 23: 59'59.