Case / bezel material: Resin Resin Band Mineral Glass Shock Resistant 200-meter water resistance Size of case : 48.9 × 42.8 × 13.4 mm. Case / bezel material: Resin. LED backlight (Super Illuminator). Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow. Mobile link (Wireless linking using Bluetooth®). 38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping. Measuring capacity: 00’00”0059’59”99 (for the first 60 minutes). 1:00’0023:59’59 (after 60 minutes). Measuring unit: 1/100 second (for the first 60 minutes). 1 second (after 60 minutes). Measuring modes: Elapsed time, split time, 1st-2nd place times. 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). Full auto-calendar (to year 2099). Button operation tone on/off. Day display (days of the week selectable in six languages). Accuracy: ±15 seconds per month (with no mobile link function). Battery life: 3 years on CR2016. Size of case : 48.9 × 42.8 × 13.4 mm. Total weight : 53 g.