The built-in 27-volt heater ensures operation even at temperatures of -60 ° C (-75 °F). Each is approximately 3 inches (8 cm) in diameter and 2½ inches (6.5 cm) deep, and is equipped with a two-day / three-day watch movement with 25 precious stones inside an all-steel dustproof case. The watch has a dust cover.
Glass dome made of mineral crystal. Aviation watches are designed for. Current time in hours, minutes, and seconds.Countdown of the flight time of the aircraft in hours, minutes and seconds. The duration of operation after the spring is fully loaded is at least 2 days. The dial is made of matte black enamel with large luminous numbers on the dial, surrounded by luminous lines of minutes / seconds, with an additional Chrono-dial at the 6 0 minute mark and an f l dial at the 12 o'clock mark. The time and flight arrows have a green outline with a fluorescent filling. The second arrow is White. The hands of the chronometer are black with luminescence, the minute hand with the tip of a shovel.
The dial is marked in Russian on both sub-dials and has a "2 days" stamp, serial number and the letter"b". The case has a diameter of about 85 mm (3 3/8 inches), and the watch weighs about 550 g (1 1/4 pounds). This watch is a completely mechanical, wind-up element. It doesn't need any EC power source.The item "Soviet Russian CCCP USSR aircraft cockpit clock chronograph AChS-1 plane" is in sale since Wednesday, October 7, 2020. This item is in the category "Collectibles\Militaria\Militaria (Date Unknown)\Air Force". The seller is "stat-ofis3" and is located in Kolomna. This item can be shipped worldwide.