The shimmering color and cool translucence of the GA2100BM. The GA2100 with octagonal bezel is paired with a dial finished in metallic vapor deposition in popular color - sky blue - offset by a translucent band for a confidently cool look. This colorful watch makes a great accessory for your street-savviest casual fashions. Case size (L? W? H) - 48.5 ? 45.4 ? 11.8 mmCase and bezel material - Carbon / ResinResin BandShock Resistant Carbon Core Guard structure 200-meter water resistance Mineral Glass World time - 31 time zones (48 cities + coordinated universal time), daylight saving on/off 1/100-second stopwatch Countdown timer 5 daily alarms Hourly time signalDouble 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) Full auto-calendar (to year 2099) Mute feature - Button operation tone on/off12/24-hour formatHand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day); Digital: Hour, minute, second, pm, month, date Casio G-Shock Style #: GA2100BM-7A2