There is a difference of 85 numbers, only, and there are two things I pointed out:
1/ The Serial Numbers 3163 and 3248 are both Civilian Milspecs, no Bronze case, with a 2 piece case back, which is not rare for a Milspec, BUT, more interesting, both come with drilled lugs....
Alain's marvellous specimen ( 3163 )
My " Ex " ( 3248 )
2/ More curious, the " Bronze case "...
" Bronze " is the color, not the material, to be clear.
It is certainly due to the treatment made on the sandblasted case, as pointed out by some of us ( BDLJ ) in previous posts.
I observed several of them during these 14 years of investigation, the numbers 3201, 3205, 3208, 3215, 3217, 3221, 3223, 3224, 3225, 3226, 3227, 3229, 3232, 3233,3234, 3237 and 3239. I am aware of other Bronze Milspec, the 3246, the number 3220 and the 3230
Among these twenty, five of them are US NAVY, which were part of two prestigious collections ( Nr 3226 and 3233 ), the third one ( Lot 231, Nr 3227
has attended the Fifty Fathoms Exhibition, and the last one, the 3217, has been auctioned by Phillips at the end of the year 2015, as well as the 3237, in December 2021.
Both of them come with the small crown, sometimes with a triangular index on the bezel, at 12 o'clock, sometimes with a losange index.
Here are the pics of a few of them:
- Nr 3201 ( Credit picture: Phillips ), with a dial which belongs to another Milspec, not to a Bronze Milspec, definitely...