Product Description Specifications: Shock Resistant, 200M Water Resistant, Anti-Magnetic Structure, 1/1000th Second Stopwatch with Speed Indicator, Magnetic Resistant, 200 Meter Water 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, Approx. battery life: 2 years, Module 5081 Amazon.com With an extra large case and ultra durable construction, the Casio Men's G-Shock X-Large Sports Watch offers modern technology in a stylishly rugged design. The textured, black dial features both analog and digital displays, embossed, luminous indexes that give a 3-D effect, and wide hands with cut-out details. This bold watch offers a variety of functions, including World Time with 29 time zones, five alarms, stopwatch, countdown timer, 12- and 24-hour formats, and day, date, and month information. A strong, black resin band wraps comfortably around the wrist and fastens with a buckle clasp for an adjustable fit. Able to stand up to extreme environments with its shock resistant technology, anti-magnetic structure, and water resistant depth of 660 feet (200 meters), this assertive timepiece is ideal for independent and active adventurers. Brand Story CasioWith the launch of its first watch in November 1974, Casio entered the wristwatch market at a time when the watch industry had just discovered digital technology. As a company with cutting-edge electronic technology developed for pocket calculators, Casio entered this field confident that it could develop timepieces that would lead the market.Today, Casio is focusing its efforts on solar-powered radio-controlled watches: the built-in solar battery eliminates the nuisance of replacing batteries, atomic timekeeping means the users never have to reset the time. Recently, Casio launched a series of Bluetooth watches that sync to the users cell phone to automatically update the time. Casio is always moving time forward.