I find it especially odd, and a bit disconcerting, that Omega touts that the 321 is assembled in a dedicated workroom by one well experienced watch technician, contrary to the assembly line process of most other movements. Good horology practice through the ages is to obtain the proper timing through use of washers, or other means, during assembly which keeps the regulator centered. But it seems Omega 'best practice' these days is to assemble it and use the regulator to dial in the timekeeping. It just goes against what they are advertising this product to be, a super duper luxury product produced with the utmost of care and personal assembly. I have no idea how the old 321's were timed since they were hidden under a solid back, maybe the same process was used. But if you are going to show it off with a sapphire back at least assemble it to best practice. Nitpicky perhaps, but when charging double the price of a 3861 Speedmaster I would expect better. This isn't to rain on anybody's 321.....they are a beautiful watch, but I never bought the hype on how special this product is.