Mechanical stopwatch SOPpr-2a-3-000
Stopwatch – mechanical, single-hand, with a mechanism of simple action control of the arrows, with interrupted operation of the clock mechanism, designed to measure time intervals in minutes, seconds and fractions of a second. It is used in sports competitions, scientific research, timing.
The stopwatch has a 60-second scale with a division value of 0.2 s and a 30-minute counter with a division value of 1 min.
The mechanism of caliber 42 mm, on 15 ruby stones, has a spring engine, an anchor stroke and an oscillatory balance system – a spiral with an oscillation period of 0.4 s.
To control the arrows, the stopwatch mechanism is equipped with a special single-action lever device. Start, stop and return of the arrows to zero is carried out by successive pressing on the crown.
The duration of the movement from one full winding of the spring is at least 18 hours.
The dial is covered with white enamel, the numbers and hands are black.
|permissible error for 30 minutes, s||±1,6|
|operating temperature range, °C||-20…+40|
|overall dimensions (no more), mm||d50x18x70|