Stopwatch SLAVA SDSpr-1 / Soviet Sport 20 stones Original box & Chronometer

Description

Stopwatch "Slava" SDSpr-1-2-000 (GOST 5072-79)
Article: СДСпр-1-2-000
Manufacturer: Slava
Stopwatch "Slava" SDSpr-1
The mechanical two-hand stopwatch of the summing action of the hands control mechanism with interrupted operation of the clockwork SDSpr-1-2 is designed to measure time intervals in minutes, seconds and tenths of a second.
Accuracy class of devices Stopwatches SDSpr-1 Slava mechanical - 2.
The caliber of the movement is 54mm. Number of stones 20.
The duration of the action of the mechanism SDSpr-1 Slava from one full spring is at least 8 hours.
The frequency of winding in continuous operation is once every 3 hours.
Duration of a full turn of the hands:- seconds (main and auxiliary) 30s;- minute 30 min.
The scale division of the device Stopwatch SDSpr-1 Mechanical Slava:- second 0.1s;- minute 0.5 min.Number of scale divisions:- seconds 300;- minute 60.The period of balance fluctuations is 0.2 s.The movement of the second hands SDSpr-1 is discrete with an interval of 0.1 s.
Average error at a temperature of (20 ± 5) ° С for 30 min. 0.4 s.
Permissible deviation from the average error at a temperature of 20 ° С for 30 min 0.3 s.
Maximum error in 30 s at 20 ° C 0.1 s.
The limiting actuation force of the hands control mechanism applied to the control buttons: the main hands (second and minute) - start and stop 18N; return 15H; auxiliary second hand - stop and alignment 15H.
Working temperature СДСпр-1: -40 ... + 40 ° С.
Dimensions:- body diameter 65mm;- body height with glass 23.4mm.
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