If you’re serious about your stats, The Seiko S143 300 memory stopwatch is the high-performance powerhouse you’ve been looking for. Built for those who live for the details, it tracks up to 300 split and lap times and even lets you recall them mid-operation without missing a beat. The massive three-row display keeps all your data front and center, while pro-level features like printer connectivity (MA12342) and multi-event memory segregation turn a simple stopwatch into a total data hub. Whether you're poolside or trackside, its water-resistant build and 10-hour capacity ensure it stays as focused as you are. Features: Measurable up to 10 hours in 1/100 of a second Split/lap time measurement Store and recall of up to 300 split/ lap times Memory segregated by event Multiple event memory Memory recall during operation Connectable with MA12342 SP12 printer Large-sized three row display panel Time and automatic calendar Battery life indicator Water resistant Instructions for the S143 Stopwatch