Ideal if you frequently make overseas calls. Stopwatch function (1/100 - 1HR) Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 1 hour. Daily Alarm, Hourly Time Signal The daily alarm sounds each day at the time you set. The value indicates how many daily alarms are available. The hourly time signal causes the watch to beep every hour on the hour. Full Auto Calendar Allowances are made automatically for months of different lengths, in case date corrections for leap years are required. 12/24-hour Timekeeping Times can be displayed in either a 12-hour or 24-hour format. Spherical Glass The surface of the glass is rounded. Resin Case Resin Band Water resistance classification (5 bar / 50m) This watch can be worn when showering and bathing - it is tested for water resistance up to 5 bar / 50 metres. The metres value does not relate to a diving depth but to the air pressure used in the course of the water resistance test.