Precision Timing for Coaches, Athletes & Professionals The Momentum PRO 500D is built for accuracy, reliability, and versatility — the ultimate stopwatch for coaches, swim teams, track & field, rowing, and scientific applications. Designed for performance and durability, it features 500 lap/split memories with recall during timing, plus fastest, slowest, and average lap calculations. The stroke-rate function makes it ideal for swimming or rowing, giving coaches the data they need to fine-tune every session. A large backlit display ensures clear visibility in any conditions, while Sure-Click buttons and a water-resistant housing deliver consistent performance around the pool, track, or in the rain. The long-life lithium battery includes a low-battery warning and a quick-access battery hatch for easy replacement. When precision matters beyond the field, switch effortlessly to Decimal Timing Mode — perfect for scientific, industrial, or time-and-motion studies, with option to switch to decimal hours, minutes, or seconds. Key Features 500 memory recall (lap & split) with recall during timing Stroke-rate measurement for swimming & rowing Fastest, slowest & average lap time calculation Decimal timing mode for lab or industrial use Large, easy-to-read backlit display Sure-Click buttons for confident operation Water-resistant housing for wet conditions Long-life lithium battery with easy hatch access Ideal For Swim coaches & rowing teams — measure split times and stroke rate Track & field coaches — analyze lap performance instantly Sports scientists & researchers — precise time measurement in decimal format Industrial & lab professionals — accurate, reliable timing for studies and experiments