Black,with grey surround and black resin strap; 50 metres water resistant; 10 year battery life;Display,switchable between 12 or 24 hour time formats; Auto calendar to year 2099; Multi functional alarm with hourly time signal. Stopwatch measuring up to 23hrs, 59 mins, 59.99 seconds in unit of 1/100th second. Our price includes insured UK delivery.