Excelsior Park Productivity Sinn SWISS stopwatch
Antique Excelsior Park Productivity stopwatch, chronometer. Measurements: 6.7 cm x 5 cm with crown. Thickness: 17 mm. 7 jewels Chromed steel case. Made in Switzerland, in the s.Condition: good.This timer has a mechanical timepiece. Stopwatch to measure time intervals in minutes, seconds and fractions of a second. Stopwatches are used at sporting events, for research and other deadlines. The timepiece features a spring driven actuator, anchor escapement and balance-spring oscillatory system.The stopwatch is started, stopped and reset to zero by successive pushing of the button. When fully wound, the stopwatch runs for at least 24 hours. Very rare stopwatch.The glass has a small crack below the number 60 – not disturbing. Will be sent by insured mail. Read More