AS ONE Corporation

Stopwatch (5-bar Waterproof) with Calibration Certificate　HS44-001

Waterproof at 5 atmospheres
Battery life 10 years

AS ONE Corporation

Stopwatch (Mechanical) 15 Minutes Meter and others

AS ONE Corporation

Stopwatch (Hand Winding Type) 15 Minute Meter With Calibration Certificate and others

AS ONE Corporation

Stopwatch (hand-wound) 15 minutes Total with JCSS Calibration Certaificate and others

AS ONE Corporation

Stopwatch (hand-wound) 15 minutes total with English Calibration Certificate and others

AS ONE Corporation

Stopwatch (hand-wound) 15 minutes, with Chinese Calibration Certificate and others