Pressing the right crown stops and starts the center hand and bottom hand. Twisting it stops and starts the second hand.
The little square window in the upper dial is controlled by pushing the right crown. The printing on the top dial interprets to: "flight time". The dial is covered with a luminous paint for night use Two-day / three-day precision clock movement with 25 jewels Waterproof and dustproof metal case Approximately 80 mm in diameter and 80 mm deep A fine piece of aviation/military history and very collectable. You can see everything on the picture.A clock in the case of ACS-1M, but the mechanism and dial of ACS-1. 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 AirForce Panel Cockpit Clock ACS-1 / AChS-1 for Su/MiG jets #50767" is in sale since Friday, October 30, 2020.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 worldwide.