Looks very nice. Ratchet wheel seems to be from ChChZ but this is a minor issue
ChChZ has elongated letters and 1MChZ has more square. Look at the letter O.May I ask about the ratchet wheel, how do you know that it is from ChChZ and not 1MChZ? I am now looking at different pics of 1MChZ Pobedas, but I just cannot spot the difference.
BTW, I have found these really nice sites for Pobedas:
Pobeda | Watches of the USSRExplore Soviet Watches: Pobeda, Victory, Military, Победа, Watch, Часы, USSR, СССРmroatman.wixsite.com