I've been reading John Biggs' book, Marie Antoinette's Watch (which I have found to be surprisingly very good) and came across Vacheron-Chossat--a name I had not encountered (or noticed) before relating to Vacheron-Constantin. Naturally, I searched for it on THL, and I found Dean's, "Proud Possession of Royalty" (another little gem) and I am curious where Chossat fit into the story of Vacheron-Constantin.
Also, I'm back from my Baltic cruise and am happy to report that my Overseas and 72 enjoyed the trip (along with my Habring2, L. Leroy and wife's Reverso). I took Dan's very good advice and took a picture of my travel roll prior to setting sail in case Customs wanted to know if I bought them on the trip. The only watch I wore on-shore was my Habring2, while an excellent watch, attracts no attention. For some reason, my Overseas (OS1) seems to become more attractive with each wearing; however, there's no way I can keep it if I get the OS 4500.
If anyone has a good source for finding out more about Chossat, please pass it on.