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: Shock resistant construction (shock resist) 20 ATM water resistant World time: 48 cities around the world (29 time zones) time display with daylight saving setting function (1/100 second, 60 minute counter, split included); Timer (set unit: 1 minute, maximum set: 24 hours, 1 second increments) 5 time alarms (snooze function). EL back light function Light time switching (1. (.5 seconds/3 seconds) included) Fully automatic calendar operation sound on/off switching function: Accuracy: Can be switched between 15 seconds, 12 and 24 hour displays. Movement: Digital Quartz Waterproof: 20 ATM water resistance Product Size (H x W x D): Approx. 2.0 x 1.8 x 0.6 inches (51.4 x 46.8 x 15.5 mm) Weight: Approx. 2.1 oz (60 g)