G-Shock GSTS110D-1A Series watch by Casio. G-SHOCK, pursuing the true toughness, has revealed a new series of products. Under the concept of Layered Toughness, the G-STEEL series consists of a quality metal body with the Shock Resistant structure that G-SHOCK is known for.Shock resistant. 200M water resistant. Solar powered. Double LED light. LED light for the face (Full Auto LED Light, selectable illumination duration, Afterglow). LED Backlight for the digital display (Full Auto LED light selectable illumination duration, afterglow). World Time. 31 time zones (48 cities + UTC), city code display, daylight saving on/off. 5 Daily Alarms. Hourly time signal. Countdown timer. 12/24 hour formats. Accuracy: +/- 15 seconds per month. Imported.