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No sooner had I received email notification then it was gone..."This listing has ended".
Anybody else spot it? But pricey but it ticked most of my boxes... odd that there were no Serial or Case Ref. nos.

 

You shouldn't lose any sleep over that one. It looks like a redial with a polished case. Not sure it's a chonometre either - thought those had the swan neck regulators?

 

If you look at the movement pic. you can see most of "Adjusted five positions...". Surely an indication of Chronometre? Whatever that means. The vendor seems to have got the jewel count wrong. I think that's actually incribed Seventeen not Fifteen.
The caseback shows a lot of pitting and that might be reason for polishing which removed ref. nos. leaving faint remnants. Or is that my imagination?