This just arrived: NOS cal. 1040 Yachting Chronograph, ref. MD 176.010. It was a gamble since the photos were blurry and it was described as a Mark IV. This is the least common of the cal. 1040 references by far.
I estimate less than 1,000 were made, making it even less common than the 176.001.
The case has been opened before (and the caseback looks to have been polished at one point to hide the evidence
馃槨) but the midcase, dial, hands, leather strap, and buckle seem
pretty darned close to NOS.
I apologize for the quality of the photos, my tripod and macro lens are packed away for a move.
20 micron etching with logo, so we know this case is original Omega and not from a similar Tissot:
Tried here to capture the "fume" finish of the bezel where it fades from goldish -brown on the outside to black on the inside. I've seen a few gp Yachting chronos with the incorrect bezel designed for the steel variant.
This dial is a
"C1" dial, which fits the design DNA of ref. 176.007 more closely (Dial I3 makes the most sense for this reference). However, I've now seen this dial more often than any other on 176.010MD.
Sharp edges at the lugs:
And a strap that looks to have been fitted to the watch for sometime (see wear in the springbar/lug area) but has no signs of being worn on a wrist:
