The Seiko S23593J is a professional-grade stopwatch built for aquatic sports and high-performance timing. With 10 BAR water resistance, a 300 split/lap memory, and stroke rate tracking for swimming and rowing, it's the trusted timing tool for coaches, officials, and serious athletes across swimming, triathlon, rowing, water polo, and athletics. A large three-row display shows split, lap, and total time simultaneously — so you never miss a beat on the pool deck. 10 BAR water resistance — rated to 100m (300ft) Measurable up to 10 hours in 1/100 of a second 300 split/lap memory — segregated into up to 100 data blocks Stroke rate measurement for swimming and rowing (up to 9 data points) ID No. function for storing individual user data Memory recall during operation Large three-row display — split, lap, and total time at a glance Fastest lap time recall function Time and automatic calendar Battery life and memory capacity indicators ⚠️ WARNING: This product contains a button/coin battery. Keep away from children. Batteries can cause severe or fatal injuries within 2 hours if swallowed or placed inside any part of the body. Seek immediate medical attention if ingested.
