School Lab Mechanical Stop Watch

School Lab Mechanical Stop Watch

The mechanical stopwatch belongs to the category of mechanical timing instruments
The watch machine adopts stainless steel spring, single metal light balance wheel, nickel base alloy hairspring and anchor vertical mechanism
The movement is equipped with 13 gems
The Mechanical Stop Watch machine can be used at -10°C~+40°C
Normally maintained within °C temperature range
1/10 SECOND RECORDER
30 SECONDS
30 MINUTES
13 JEWELS
CASE: BRASS CHROMIUM-PLATED
START/STOP: CROWN
RESET: SIDE BUTTON