A part of the new Natural Colour series, this model GA2100NC-3A is an example of G-SHOCKS unrelentless dedication to releasing timepieces that have continued to evolve since 1983. Being the demonstration of ultimate toughness. Each model in this series is made with a colour selection of monotoned Earth colours, drawing inspiration from planet Earth and its grasslands, sand, and rocks. It’s neutral colour scheme and design can accentuate casual and outdoor styles. - 48.5 x 45.4 x 11.8mm Case Size - 51g Weight - Shock resistant (G-SHOCK) - Double LED light: LED light for the face, LED backlight for the digital display - Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents) - World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off - Stopwatch - Countdown Timer - 5 daily alarms - Hourly time signal - Full auto-calendar (to year 2099) - 12/24-hour format - Button operation tone on/off - Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) and Digital: Hour, minute, second, pm, month, date - Accuracy: ±15 seconds per month - Approx. battery life: 3 years on SR726W × 2