Additional Details ------------------------------ Product description: G-SHOCK has created a new concept of toughness in watches. It all started with a developer's heat belief that creating a watch that won't break even if dropped, and a challenge that overpowers the common sense of the time. STRENGTH. Aim for strength ahead. G-SHOCK, the challenge never ends. Specifications: Stopwatch: Stopwatch (1/100 second (0'00''00''00~59'59''99), 1 second (1:00'00''~23:59'59''), 24 hour meter), with split timer: timer (set unit: 1 second, maximum set: 24 hours, 1 second increments, auto repeat). Alarm/Hourly Time Signal: Multi-alarm/hourly alarm flash function: Alert flash function (alarm/hourly signal/timer-linked luminous); Light: EL backlight (with afterglow function); Light color: EL: Blue green calendar: Full auto calendar accuracy: Average monthly difference: ±15 seconds, other functions: 12/24 hour display switch. Directions: ・Case Size (Length x Width x Thickness): 1.9 x 1.7 x 0.5 inches (48.9 x 42.8 x 13.4 mm); Weight: 1.9 oz (53 g); Band Compatible Size: 5.7 - 8.1 inches (145 - 205 mm); Shock Resistant: Water Resistant: 20 ATM water resistant, stop watch, timer, multi-alarm, flashing flashing function (alarm, hourly flashing timer, LED light function. Fully automatic calendar. Average month difference: ±15 seconds, 12/24 hour display switch