Case / bezel material: Stainless steel Resin Band Mineral Glass 100-meter water resistance Double LED light LED light for the face (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) Mobile link (Wireless linking using Bluetooth??) Flight mode World time 38 time zones (38 cities coordinated universal time), daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping 1/1000-second stopwatch Measuring capacity: 00'00''000~59'59''999 (for the first 60 minutes) 1:00'00''0~23:59'59''9 (after 60 minutes) Measuring unit: 1/1000 second (for the first 60 minutes) 1/10 second (after 60 minutes) Measuring modes: Elapsed time, lap time Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) 5 daily alarms Hourly time signal Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents) Full auto-calendar (to year 2099) 12/24-hour format Schedule beeper on/off Button operation tone on/off Date/month display swapping Day display (days of the week selectable in six languages) Regular timekeeping Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (linked to each mode) Digital: Hour, minute, second, pm, month, date, day Accuracy: ?ñ15 seconds per month (with no mobile link function) Approx. battery life: 2 years on CR2016 Size of case : 51??48.5??12.5mm Total weight : 101g