ACCUSPLIT AE625M13 Eagle Stopwatch with 13 Memory 10-hour timing range stopwatch with dual-split (cumulative and lap) timing Includes eight-event memory, pacer, countdown timer, average-split compute, and fastest/slowest lap Uses Watch Company Operating System (WOS) 2.5 1.5-year battery life and water resistant up to 10 meters Five-year, no-proof-of-purchase warranty