For those who know me...I like to pick selected referenced and then perform a study of the reference (and often specific material and/or dial), including a serial number/price project of all known pieces. I have just completed this for the Vacheron Consta...
It is interesting...at sales I see sizes ranging from 34-36 (actually even 33 for an outlier early example). For one piece provided by Vacheron, they quote as 35mm.
Yes, thank you for mentioning. For those interested in the steel, please be aware it is a replacement dial. These are lovely pieces, thanks for sharing the images!
There is no way to comment on my site, so just wanted to share the information in case of interest and to converse about it here. But apologies, I won't mention the site again!