ACCUSPLIT Pro Survivor – A601XBK Stopwatch, Clock, Extra Large Display (Black)

Two channel countdown timer; each channel can be preset for up to 100 hours
Measurable up to 100 hours in 1/100 of a second; split/lap time measurement
Store and recall of up to 100 split/lap times; memory recall during operation

Function buttons cannot be used operated under water, means don’t press any buttons, but still can watch the time under the water.
Kids Sports Watches, Wrist wristbend watch
Waterproof and shockproof outdoor sports series, can be used for diving and swimming

Pacer – Resolution: 1/100 second – Resolution: 1 second
Range: 40-180 beats per minute – Range: 9 hours 59 minutes 59 seconds – Range: 23 hours 59 minutes 59 seconds
Daily Alarm – Memory: 50 laps – Backlight Electro-Luminescent

300 dual split memory recall; 1/100 second precision to 100 hours.
User selectable running lap or split time; automatic lap counter to 999.
Stroke Rate Calculator displays strokes per minute; Speed Timer in MPH/KPH.