Distinguishing between the Reference 346, 2443 and 2447 can be an infuriating undertaking, but you have a fantastic looking watch (and a great keepsake) which reference it may be.

The Reference 2447 used the smaller Valjoux 72 movement (13 Ligne) and had more angular lugs; the Reference 346 used the larger Valjoux 71 movement (14 Ligne), with more rounded lugs.

The curved lugs of your suggest Reference 346, but it's difficult to tell from one photo. If you can get to a good watchmaker, and send or post a photo of the movement and the inside of the case-back, we might learn more.

Jeff

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: Hi,

: I am new to the forum and would appreciate with help to determine
: the model of the Heuer watch in the picture below. The watch has
: belonged to my grandfather, and hence I am interested to learn
: more about it. Any comments is appreciated.

: Best regards, Charles