Silky smooth with pearly luster — a soft, subtle, and sophisticated timepiece from Casio G-Shock. Pearlescent polarized coatings with a matte finish that change in appearance depending on the viewing angle are applied to the bezel and band. Gorgeously radiant metallic colors are used for the dial. A half-matte finish applied to the index marks and dial with vapor deposition leaves a subtle luster, adding a touch of brilliance to the simple appearance of the minimalist design. Key resin components used in the bezel and band are made with bio-based resin. Produced using renewable organic resources, this material is expected to help reduce environmental impact.<ul><li>Case size (L× W× H): 46 × 40.2 × 11.2 mm</li><li>Case and bezel material: Resin / Bio-based resin</li><li>Band: Bio-based resin band</li><li>Construction: Shock Resistant</li><li>Water resistance: 200-meter water resistance</li><li>Power supply and battery life: Approx. battery life: 3 years on CR1025</li><li>Glass: Mineral Glass</li><li>Compatible band size: 145 to 190 mm</li><li>Other: Neobrite</li><li>World time: World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off</li><li>Stopwatch: 1/100-second stopwatch</li><li>Timer: Countdown timer</li><li>Alarm/hourly time signal: 5 daily alarms</li><li>Light: Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)</li><li>Light color: LED: White</li><li>Calendar: Full auto-calendar (to year 2099)</li><li>Mute feature: Button operation tone on/off</li><li>Accuracy: Accuracy: ±15 seconds per month</li><li>Other features: 12/24-hour format</li><li>Casio G-Shock Style #: GMAP2100ST-4A</li></ul>