I am pretty sure that the Seamaster references that some times come with a red seconds hands aren't Calendar versions, so I'd say that yours is a replacement. Could have been done at the same time the dial was refinished.
I love these cases in gold cap
![Smile :) :)](styles/default/xenforo/smilies/xsmile.png.pagespeed.ic.Ag8h2FS5_U.png)
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