I started with my Montreal but only to bring it into the office to send to its new owner. Fortunately my 176.005 was waiting on my other wrist ready to take over.
Older pictures, but this one. My 1933 Rolex Prince Observatory duo-dial. The only one of these I have ever run into with 18-jewels (15 and17, typically), and adjusted to 6 positions. Gruen used this movement as well. Suspect it was made by Aegler, for Rolex. I am the second owner. My late father having bought this one in Saskatoon, Saskatchewan. Unfortunately, a gold filled case.
I've gotten into vintage Japanese watches lately.....1969 Citizen Seven Star Parawater.....+- 5 secs in all positions...just outside COSC after 50years. $75 delivered.