A professional digital silent stopwatch designed for accurate, reliable timing in training and competition. Precise measurements, long memory, and multi-function timing make it easy to track performance, review results, and run interval or paced workouts. Key benefits High-precision timing: 1/1000 second accuracy captures split differences for sprints and short-interval work. Large memory and dual-split capability: 2 groups dual-split with 100-lap memory and on-the-fly memory recall so you can record and review laps while continuing to time. Silent operation with backlight: quiet for indoor use, plus a backlight for low-light visibility. Versatile timing modes: combines stopwatch, countdown, stroke/frequency metronome, clock/calendar and alarms so one device handles multiple training needs. Energy efficient: automatic screen power-save mode; press any key to wake the display. Features Stopwatch: Dual-split stopwatch with 100 laps memory, displays fastest (FS) and segmented time. Memory recall available during operation. Accuracy: Measures to 1/1000 second for detailed performance analysis. Countdown timer & stroke/frequency: Countdown up to 9:59:59. Stroke/frequency metronome range 10–320 times per minute. You can take splits while in recall mode. Timer functions: Time, calendar, pacer, two independent alarms, and hourly chime. Calendar supports 12/24-hour display selection. Design and durability: Water resistant and built for sport use. Lighter than metal models with more responsive buttons for quick, reliable operation. Power saving: Intelligent automatic screen off; press any key to reactivate the display. Practical use scenarios Track and cross-country meets: Time races with high precision, record multiple athletes’ laps with the 100-lap memory, and instantly recall fastest and segmented times for on-site feedback. Interval and pacer workouts: Use the countdown timer and pacer/metronome (10–320/min) for tempo runs, interval repeats, or cadence-based training sessions. Coaching and multi-athlete sessions: Dual-split and memory recall let coaches track several athletes or multiple heats without interrupting ongoing timing. Quick specifications Stopwatch: Dual-split, 2 groups, 100 laps memory Resolution: 1/1000 second Displays: Fastest (FS) & segmented time Countdown: Up to 9:59:59 Metronome/stroke frequency: 10–320 times per minute Additional: Backlight, silent operation, memory recall during operation Timer/clock: Time, calendar, two alarms, hourly chime, 12/24-hour mode Other: Water resistant; sport/multi-sport track and field use; lighter than metal ones; responsive buttons; intelligent power-saving screen This stopwatch combines precise timing, extensive memory, and flexible timing modes to meet the needs of athletes, coaches, and officials in training and competition.