Rusia - Fuerza aérea - Herramienta, Reloj de pulsera - 1980

Aviation clock type AChS-1 ( Chelyabinsk)
Specifications
Basic technical data
Hours run after full spring winding ≥ 3 days
Accuracy ± 20 s / day
Number of jewels 25
Operating temperature range ± 60 ° С
The frequency of winding the watch once every two days
Vibration strength at an acceleration of 2 g (20m / s²) is provided in the frequency range 18 ... 144
Overall dimensions 85x91.4x91.4 mm
Watch weight: 655 g
Application
Aviation clocks are designed to display the current time in hours, minutes and seconds; for counting the flight time of the aircraft in hours, minutes and seconds.

The watch consists of mechanisms of current time, flight time and a stopwatch (60 minutes).
Equipped with an electric heater with a thermostat.
Coating of dial signs and hands with temporary light-mass (under UFO illumination).
Add more description to the buyer.
Everything works as expected.
See the photo there I wanted to show the movement of the arrow.