PM-718 STOPWATCH 1/10 Th

The main dial records upto 30 seconds, graduated to 1/10 of a
second and figured at 2 second intervals. The subsidiary dial
records upto 15 minutes and figured after 3 minutes. Start, Stop
and Reset all operations are by same button. With a ring for
attachment of a chain. Movement housed in a nickel plated metal
case