World Time for 50 cities (30 time zones); 100 Metres water resistant;Blue backlight with auto light switch function ( allows light to operate when wrist is moved through 40 degrees); Thermometer with a measurement and display range -10 deg C to 60 deg C. Display unit 0.1 deg C; Display temperature in C or F ; 12 or 24 hour time formats; Dual Stopwatch facility for two independent lap time measurements. Measuring in units of 1/100th second for 59 mins, 59.99 secs, and then in units of 1 second up to 99 hrs, 59 mins, 59.99 secs; Memory capacity for up to 50 records (used for lap times and total elapsed time)Other- Lap numbers 01 to 99 ; Best lap time;Countdown timer measuring in 1 second units with an input range up to 100 hours. Auto repeat timing; Daily alarm and hourly time signals; Two year Casio warranty. Our price includes insured UK delivery.