Casio G Shock Mens Rubber Strap Green Analogue & Digital Watch GA B010 3ADR white leather creating a focal point that yet classic design also creating a focal point that draws the eye battery life: 3 years on SR726W X 2 Exterior Glass Mineral Glass Compatible band size 140 to 205 mm Other Neobrite Watch Features World time World time 31 time zones (48 cities + Coordinated Universal Time) Light color LED: White Calendar Fully automatic calendar (until 2099) mute function Button operation tone on off Power saving function Power saving function (the display screen will go blank when the watch is placed in the dark to save power) and afterglow function) and LED backlights for digital displays (fully automatic LED lights