Length of the minute hand is OK, the crown is definitely not original. Crowns for '60s Carreras had less height out from the case, whether they were signed or not - the only difference is that the earlier unsigned crown had a larger diameter.
I would expect a 72xxx 3647 to have a signed crown
Certainly not doubting you, as there weren't any hard and fast cut offs or rules, but that would be my very general expectation based on what I've seen.
I don't know exactly when the switch occurred, and there most likely wasn't a "hard" switch, but IIRC, most low 60xxx's, maybe say 65xxx and below I've seen have the unsigned crown.
Is that just for the Valjoux 72/92 movements? My 3647 unsigned crown (72xxx serial) is 6.30mm and the signed 7753 (106xxx serial, 7730 movement) is 6.72mm.
3647 on the left, 7753 on the right.
It has a 76XXX serial number. Can I be sure I have to look for a "heuer" signed crown for that serial number?
Can anyone suggest the year of production 😀
It has a 76XXX serial number. Can I be sure I have to look for a "heuer" signed crown for that serial number? Can anyone suggest the year of production 😀
Thanks for your answer! I see I asked the right people 😀 How can I tell if the hands have been re-lumed? I took another picture where the colours are more natural. To me it looks like the lume on the hands and dial is matching.
And can you tell from the pic below if I have an original crystal?
Haha, no worries, I wont wear that watch for working on cars 😉
Well perhaps they were both done together.... The colour looks rather light to me, lumes generally tend to darken as they get older. The other thing I noticed is that there seem to be no gaps. My 3647 has lost about 5% of its lume and the 7753 about 0.5%. Both show up in the shadows of the hands in photographs taken under strong light, but are un-noticable on the wrist.
I wore my first while working as a mechanic on international rallies (not professionally, for amateur friends). Most 🙁 of the time I would remember to take it off first. It has also been to sea in yacht races across the North Sea and around the sand-banks off the English east coast. The bulk of the damage to it has been while changing straps or bracelets with a pen-knife rather than the proper tool. And banging the crystal into something.
Theres a really weak glowing of the hands for some minutes in the dark (can only see it when my eyes are adepted to the dark).
But when I put a real bright light on it, it glows brighter for several seconds.
I have an all original Tissot from 1973 which does exactly the same.
