Soviet aviation mechanical watch 55M with a 24-hour dial. The 55 M hour unit is designed to measure the current time in hours and minutes and to switch electrical circuits in accordance with a given time program in aviation technology. The clock was installed on one of the blocks of the identification system 6201 (friend or foe) and was intended to automatically switch the identification codes of the aircraft radar interrogator-responder. The 24-hour scale and hands are covered with a safe light-accumulating mass of temporary action, which has the effect of a residual glow in the dark after irradiation with ordinary light, or a bright glow in the dark under the influence of ultraviolet irradiation of ARUFOSH fittings used to illuminate aircraft cockpits. The red arrow is used to set the response time of the contact group.The clock was installed on almost all aircraft and helicopters of the USSR. Duration of work 2 days. Accuracy: ± 20 s / day. Operating temperature range: + 65 ° , - 60 °.
The watch is in good working condition. There are minor scratches on the case.
Look carefully at the photos. Please check out my other items in my store. All items are old or original - I do not sell counterfeits. I'm glad that you are interested in lots that I sell.Wish you a good shopping. The item "Soviet Cockpit Clock 55M Air Force Aircraft Aviation watch block 24 hour USSR" is in sale since Monday, May 17, 2021. This item is in the category "Collectibles\Militaria\Militaria (Date Unknown)\Air Force". The seller is "saros_watch" and is located in Kiev. This item can be shipped to United States.