Extech 365535 Decimal Stopwatch/Clock

From the Manufacturer

Decimal Stopwatch/Clock has user-selectable resolutions of 1/100th of a second, 1/1000 of a minute, and 1/100,000th of an hour. Additional features include: 500 memory records with Split and lap times, 12/24 hour clock format, 3 Mode countdown timer, Stroke measurement, and Pacer from 5 to 240 beeps per minute.

Make sure this fits by entering your model number.
Water resistant decimatch stopwatch/clock with user-selectable resolutions
User-selectable resolutions of 1/100 of a second, 1/1000 of a minute and 1/100,000 of an hour
Large triple display with adjustable contrast
500 memory records of split and lap times
Calendar displays day, month and date