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: Case/Bezel Material: Carbon/Resin Resin Band Inorganic Glass Shock Resistant Construction (Shock Resistant) Carbon Core Guard Structure: 20 ATM waterproof hand shift function (When the hands overlaps with the LCD display, you can temporarily move the needle away from the LCD display) World Time: 48 cities around the world (31 time zones, daylight saving time setting) + UTC (Coordinated Universal Time). Home Time). City exchange function stop Watch (1/100 second, 24 hour counter, split included); Timer (set unit: 1 minute, maximum set: 24 hours, 1 second unit); 5 time alarms, full auto calendar, 12/24 hour display switching between operation sounds ON/OFF function; Double LED light for dial (super illuminator, afterglow function, afterglow time switch (1.5 seconds LCD/3 seconds). LED backlight for parts ( Super illuminator, afterglow function, afterglow time switch (1.5 seconds / 3 seconds) accuracy: Average monthly difference ± 15 seconds battery life: Approx. 3 years.