Seiko S063 - 300-Lap Solar-Powered Decimal Stopwatch

The Seiko S063 is a specialty solar-powered stopwatch engineered for production control and performance analysis, displaying time exclusively in decimal-minute (DM) units rather than hours, minutes, and seconds. For programs and industrial timing applications that log data in decimals, it removes conversion math entirely and speeds up recordkeeping. Solar power means you never stop to change a battery mid-session.

Key features & specs

• Decimal-system display only (measures up to 99,999.9 DM in 0.1 DM)
• Stores and recalls up to 300 split/lap times with memory recall during operation
• Two-row display: choose split/total, lap/total, or lap/running-lap time
• Interval (dual countdown) timers with auto-repeat in decimal system
• Time and full automatic calendar with alarm
• On/off confirmation sound and automatic shut-off
• Solar-battery powered; 5-bar water resistant

Usage tip: Ideal for time-and-motion studies and pacing work that reports in decimal minutes. Keep the solar cell exposed to light to maintain charge, wipe the case clean with a dry cloth, and store indoors.