The clock fully mechanical is used in a control panel of jet military planes MIG-19, MIG-21, MIG-23, MIG-29, strategic bombers, Helicopter and transport planes of the USSR. This clock is fully mechanical, wind up item. It does not need any power source to be operated! These clocks have been designed to withstand speeds of Mach 3 / 1800 mph (2900 km/h) and altitudes of up to 100,000 feet (30 km). These robust timepieces are built to keep time flawlessly while pulling 6G's!Built-in 27-volt heater ensures operation even at -60 °C (-75 °F). Each measures approximately 3 inches (8 cm) in diameter by 2½ inches (6.5 cm) deep and feature a two-day / three-day precision clock movement with 26 jewels, inside an all-steel, dustproof and waterproof case. The clock consists of mechanisms of current time, flight time and stopwatch (30 min). Duration of working hours after full spring starting 3 days.
Stroke accuracy ± 20 s/day. Operating temperature range ± 60 °. Frequency of clock start once every two days. Vibration strength at acceleration 2 g (20m/s ²) is provided in the frequency range 18...
Stand height 152.4 mm. The item will be packed very carefully. Please don't hesitate to ask me any question you have got. The item "AChS-1M Military Air Force Clock Mechanical Aviation Chronograph Watch USSR" is in sale since Thursday, August 6, 2020. This item is in the category "Collectibles\Militaria\Militaria (Date Unknown)\Air Force".
The seller is "time-o-logist" and is located in Europe. This item can be shipped worldwide.