Casio watches have been established as the industry leader in tough watches for tougher situations. The Casio G-Shock collection has no rivals in ruggedness and features. US Coast Guard approved Casio Pathfinder accompanies these heroes in the harshest seas and highest waves. Casio unrelenting quest to be the go-to tool in any situation is reinforced by the Casio Executive collection which is just as comfortable in the boardroom as on the battlefield. Taking technology as their guide incorporating barometers and compasses, solar and atomic technology, there is simply nothing that says quality and reliability like Casio. Rugged and unstoppable, the Casio G-Shock Tough Solar collection. Army green plastic resin case measures 43mm wide by 17mm thick. Sturdy resin strap includes a buckle. Black digital dial with Electro-luminescent backlight and afterglow. Shock resistant and water resistant to 200m. World time. 31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off. 24h chronograph measures in 1/100sec increments. Measures elapsed time, split time, and 1st-2nd place times. 24h countdown timer measures in 1sec increments. 4 one-time alarms and 1 snooze alarm. Hourly time signal. Full auto-calendar (to year 2099). 12/24-hour format. Button operation tone on/off. Precise Casio Tough Solar movement, powered by any available light. Accurate to -/+ 15 seconds per month. Battery power indicator.