Extremely helpful as always. Thank you 
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.Looks very nice. Ratchet wheel seems to be from ChChZ but this is a minor issue
Nice detail again, i never would have noticed that, thank you. I went through some pics of other pobedas now that you have told me that, and found several watches which such a change. I guess it is expected for 70 year old watches to have some parts changed.ChChZ has elongated letters and 1MChZ has more square. Look at the letter O.