To my understanding, the Russian character on the dial of the watch in your picture denotes "Pilot". This meant a couple of things. There are a number of manufacturer who produces Pilot watches, notably Poljot, Raketa and one other brand.
Read from RussianWatches.Info that these are Russian Pilot watches. But very little can be gain from here. As for the movement, there are 2 or 3 different types. For example, the Russian mechanical chronograph watch Pilot Aviator 31681 utlises a Mechanical Poljot 31681 caliber, hand-wound, (diameter 31 mm) whilst the Russian Aviator Kozhedub and Nesterov employs the Automatic 8215 Miyota Japan movement with 21 Ruby jewels. Am not sure the watch in your picture uses what movement. Very likely, IMO, it uses the Miyota movement. An additional scale of XX century years (from 1900 till 2000) is put on the dial , on which the years of the pilot's life in your picture are marked in blue. The contours of the fighter aircraft is displayed at the bottom of the dial. The glorified ace gained the greatest number of his air victories during the war on this airplane.
