It is - the B-2000 (in, what AP calls „the small case number“) and - the number 100‘000 (in, what AP calls „the big case number“ which is engraved inside the case). Cheers, HSTE ...
Care to share the movement number? I keep track of every RO Jumbo I come across on the web and in person, all in the name of building a database to publish scholarship. I like to analyze/speculate on production dates, production numbers, etc. The RO is my...