Original Case Finish for A C-Case Seamaster 120 (166.027, et al.)

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Hey all, I’ve had the privilege of owning a few of the first iteration Seamaster 120s in various forms. I’ve bought and sold them over the years, but I’ve held on to one 166.027.

One thing I’ve always wondered about is the original finishing. I’ve seen some advertised as NOS or close to NOS with the top of the case featuring radial brushing. However, I’ve rarely come across this brushing out in the wild. That would make me think most have been polished, but I’ve come across a few that still appear sharp.

Does anyone know of an answer on this or have thoughts? Is it possible that they came both ways? I know service cases were made for these, some of which have an extra digit in the reference number.

Here is a seemingly NOS case from ebay without brushing:



Here are some excellent dealer examples sans brushing:



Here is an example with the brushing I mentioned:

 
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That's a nice example. Haven't noticed it in my saved searches. Overpriced?
 
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I’ve had 10+ Seamaster 120’s and two spare cases. It might be controversial but I genuinely think they came in both all polished and with a brushed top side.

I’ve had some that were super sharp, minimal/no evidence of polishing yet they had absolutely no signs of a brushed surface.

Conversely I’ve had around 3 which did have a radially brushed top which looked completely factory and was in keeping with the rest of the watch.

Compare to other watches with brushed top surfaces such as the Camaro, which has to have a completely ruined case for the brushed finish to disappear.
I just don’t think it’s plausible that the majority of SM120’s have been polished so hard that the brushed finished has been lost completely.