Gentlemen Looking into chrono24 I found a Mark II that struck me as odd. The reason is that the movement serial is in the 27M range, which would point to 1968 (https://est1897.co.uk/omega-serial-numbers-how-old-is-your-omega-watch), but the Mark II was introduced in 1969. The lowest movement serial I've found so far for a Mark II was in the 28M range. Could this be a really early Mark II or was the caliber replaced? Please see attached:
[QUOTE = "valkyrie_rider, post: 1233119, member: 49119"] Messieurs En regardant dans chrono24, j'ai trouvé un Mark II qui m'a semblé étrange. La raison en est que la série de mouvement est dans la plage de 27M, qui indiquerait 1968 ( https://est1897.co.uk/omega-serial-numbers-how-old-is-your-omega-watch ), mais le Mark II a été introduit en 1969. Le plus bas mouvement de série que j'ai trouvé jusqu'à présent pour un Mark II était de l'ordre de 28M. Pourrait-il s'agir d'un Mark II très précoce ou le calibre a-t-il été remplacé? Veuillez trouver ci-joint: View attachment 763399
hello yes I think. a model to deliver in 1969 and probably manufacture in 1968 (also with old parts stock)
I would order an Extract of the Archives to be sure about that. I have made some sad experience with a Speedy which had a movement # in the 27M range. After receiving the extract I recognized that the movement originally was inside a De Ville - so somebody switched the cal. 861 to increase profit. Sold it then with more than 25% loss and decided to buy one here. Part of my learning process ...