ST50SW STRELA Stoppwatch
Diameter 50 mm; Height 19 mm; Work conditions - 20 to + 40 degree Celsius.
STRELA - MECHANICAL SHOCKRESISTANT STOP-WATCH
The mechanical STRELA stop-watch ! It is made for measuring time intervals in minutes, seconds and fractions of a second.
It can be fully operated with one hand.
The 42 mm calibre 4282H with 15 jewels is provided with spring actuator, lever escapement and balance-hairspring oscillatory system with a cycle of 0,4 s.
Special single-acting lever device facilitates the stopwatch hand control. The stopwatch is started, stopped and its hands are reset to zero by successive pushing the winder.
The stopwatch run after a complete winding of the mainspring is at least 18 h.
The delivery set includes stop-watch in original casing with certificate & instruction.
Black dial with STRELA signature.
