CASIO Casio G-SHOCK DW-6900U-1JF New Color: Black Case size (H x W x D) 53.2 x 50 x 18.7 mm Weight 67 g Case/Bezel Material Resin Band Resin band Structure Shock-resistant structure (Shock Resist) Water resistance 20 ATM water resistance Power supply/Battery life Battery life: Approx. 5 years Exterior Glass Mineral glass Band attachment size 145～205mm Watch function Stopwatch Stopwatch (1/100 second (0'00''00～59'59''99), 1 second (1:00'00''～23:59'59''), 24-hour counter), with split) Timer Timer (set unit: 1 second, maximum set: 24 hours, measured in 1-second increments, auto-repeat) Alarm Multi-alarm/hourly time signal Flash alert function Flash alert function (alarm/hourly time signal/timer linked light emission) Light LED backlight (Super Illuminator, with afterglow function) Light color LED: White Calendar Full auto-calendar Accuracy Average monthly difference: ±15 seconds Other functions 12/24 hour display switching New, unused Instant purchase OK #CASIO #Casio #GSHOCK #G-SHOCK #GW9408 #DW6900UMS1JF #DW6900U1JF Model/Product name: G-SHOCK