This fits your .

Sonically welded case ensures excellent water resistance. Large 5/8 inch high display makes visibility easy. Counts up to 24 hours with resolution of 1/100 second. Note: the resolution changes to 1 sec after 40 minutes. Features lap function, alarm, clock and calendar. What's included: neck cord and button cell battery.

Sper Scientific 810035 Water-Resistant Digital Stopwatch Lap Alarm Clock Calendar - B48B9POHH