Casio 5600 Series Waterproof Solar Digital Continuing Model G-Shock Men's Radio-Controlled Watch, Black, GW-M5610U-1 (GW-M5610-1 - Number) .

Movement: Solar Water resistance: 20 ATM Dimensions: Height x Width x Thickness: Approximately 46.7 x 43.2 x 12.7 mm Weight: Approximately 52g G-SHOCK established a new concept of toughness in watches. It all began with the passionate belief of the developers to create a watch that wouldn't break even when dropped, a seemingly reckless challenge that defied the conventional wisdom of the time. Unlimited strength. Aiming for strength beyond that. G-SHOCK's challenge has no end. ＜Specifications and Functions＞ Shock-resistant structure (Shock Resist) 20 ATM water resistance LED backlight (Full auto light, Super Illuminator, afterglow function, afterglow duration switching (1.5 seconds/3 seconds)) World time: 31 time zones (48 cities + Coordinated Universal Time), with home city swapping function 1/100 second stopwatch 5 daily alarms (only one with snooze function) Full auto calendar 12/24 hour format Accuracy: Average monthly difference ±15 seconds