I took shots between lugs but it did not come out so clear. I will try a get better photos using a different camera. Anyway, the back case has the last 3 digits of the serial number, the reference number 1665 and the manufacture date I/72. Serial is 3.5mil which is consistent to a MK3 dial
As for the bezel, I spoke to the previous owner again and inquired if he changed it. He said that a friend gave him the ghost bezel as a spare and he decided to use it for that more vintage appeal. He also said that the original is still with him but asked for a few days to locate it. Sub bezels are still a gray area for me as far as knowing what is original for a given model.
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