GA-810 is a more compact mid-size model designed for high readability. Designed in the image of an accessory or fashion item, the overall finish of this model is matte black. The face has a brilliant deposition mirror finish that gives it the sparkle of a fine accessory. Specifications Shock Resistant LED Backlight (Super Illuminator) World Time 31 time zones (48 cities + coordinated universal time), city code display, daylight savings on/off) 1/100- second stopwatch Measuring capacity: 23:59'59.99 Measuring modes: Elapsed time, split time, 1st-2nd place times Countdown timer Measuring unit: 1 second,Countdown range: 60 minutes , Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Hand shift feature (Hands move out of the way to provide an unobstructed way view of digital display contents) Full auto calendar (to year 2099) 12/24 hour format Button operation tone on/off Regular timekeeping: Analog :3 hands (hour, minute ( hands move every 20 seconds) Accuracy: +_ 15 per month Approx. battery life: 5 years on CR2016 Size of case / total weight 54.1 X 48.6 X 15.5 mm /62g