Marathon Instantaneous Return Time-Out Single Action Mechanical Stopwatch Black. The sweep second hand makes one revolution in 60 seconds and has a 60 minute register. Balance wheel features shock absorbers and locked returns which prevent accidental reset. Temperature-compensated hairspring and unbreakable mainsprings Imported. 7 jewels. Time-out 2 button function. Fibreshell case resists corrosion. Dust water and shock resistant. Made and manufactured in Switzerland. Specifications for Marathon Instantaneous Return Time-Out Single Action Mechanical Stopwatch: Manufacturer: Marathon Color: Black Package Contents: Marathon Instantaneous Return Time-Out Single Action Mechanical Stopwatch Marathon ST194003: Instantaneous Return Time-Out Single Action Mechanical Stopwatch Black