Jose:

I have added some photographs of the Old Clunker, and you can get to them with the link at the very bottom of this message.

The case-back is engraved, with a 1943 date, so it is entered under that date (1943).

I will try to answer your questions, in the following posting.

The big question is: DID SOME EARLY HEUER CHRONOS HAD NO NUMBERING AT THE CASE???

The is no numbering on the exterior of my case.

I´ve checked the chrono caliber and it´s a Valjoux 72.

I have posted photos of the movement. I believe that it is Valjoux 71, but am not certain. I have not had the time to study the movement.

Everything seems to be right, EXCEPT for the MISSING case numbering that should be at the lugs space just bellow 6. There is NO numbering anywhere on the case... BUT there IS a stamped number under the case back cover (540..)!

There is no number anywhere on the exterior of my case . . . have a look at the number inside the case-back -- 57703. The finish between the lugs is brushed, but there are no numbers.

Since all previous vintage heuers (chronos and
non-chronos) I´ve seen HAD a case number at the same place, I really don´t know if that´s 100% original... All other signs tell me that it´s original the case is s/s with the original brushed polish, the caliber has a bridge with a Heuer logo identical to another original one I own and the dial/hands are original with the proper logo.

Thanks for reading,
Jose

Jose: I hope this is helpful. The Old Clunker is one of my favorites . . . clean lines; reliable movement; and the freckles on the dial tell us that it is definitely original. You will also notice that there are several watchmakers' marks inside the case-back, telling me that it has been serviced regularly over the past 60 years.

Please let us know what you do and send some photos.

Jeff

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