Casio G-shock GMD-S6900MC-1 SP 1 second (after 60 minutes)

1 second (after 60 minutes)

Operation sound (on / off)

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機芯 E168 充滿電力後最長運轉時間(正常使用) 約 6 個月 動力 光動能 訊號接收 沒有電波接收信號功能 錶帶 不銹鋼 防水 200米防水 重量 177g 厚度 12mm 錶徑 44

and band keeper

Casio G-shock GMD-S6900MC-1 SP 1 second (after 60 minutes)Specifications 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.