Casio GA200BW-1A men's G-Shock magnetic resistant black resin digital world timer silver & black watch carries a case diameter of 52mm and a case thickness of 17mm. Featured on this model is a fixed bezel, polished function pushers. The caseback on the Casio GA200BW-1A is with four screws, maintaining the 200 meters water resistance. The strap is crafted in black resin and is secured using a buckle clasp. This casual watch has a black dial with indexes hour markers. Casio GA200BW-1A equipped with magnetic resistant, auto LED light with afterglow, world time 29 times zones (48 cities + UTC), daylight saving on/off, home city/world time swapping, 4 daily alarms and 1 snooze alarm, hourly time signal, 1/1000 second stopwatch measuring capacity: 99:59'59.999", measuring modes: elapsed time, lap time, split time others: speed (0-1998 units/hour), selection distance input (0.0-99.9), countdown timer measuring unit: 1 second countdown range: 24 hours countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) other: auto-repeat, full auto-calendar (pre-programmed until the year 2099), 12/24 hour formats, accuracy: +/- 15 seconds per month, battery: CR1220, approximately battery life: 3 years. Protecting the dial is a mineral crystal designed to resist scratches. Powering this fashionable watch is a Japanese made quartz movement.