Shockproof construction - Core technology of G-SHOCK in pursuit of toughness - Protects modules with shock-resistant construction - Unique concavo-convex shape prevents direct impact to glass and buttons;Waterproof performance] ISO standard 200m diving waterproof function;Tough Solar - Casio's unique solar charging system that stably operates various functions that require a heavy load by combining a solar panel that generates electricity even with little light and a large-capacity rechargeable battery. ;Tough Solar / World Time / Log Data (dive start date and time, dive time, dive time graphic, LOG recall No.) 10 memory / Moon Data / Tide Graph / Diving Function / Stopwatch / Timer / 5 time alarms / Battery Indicator display, power saving function, fully automatic calendar, 12/24-hour display system switching, operation sound ON/OFF switching function, LED backlight Please note that some of the models are made exclusively for Japanese market, hence the specifications and interface language is all in Japanese and cannot be changed to a different language. If there is no stock, it may be canceled after notification. ## Voltage For electronic equipment, it is recommended to use a transformer just in case. This is because electronic equipment for Japan is designed to be used at 100V.