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Discussion in 'European & Other Pocket Watches' started by Jeff Hess, Jan 15, 2020.
thoughts? on these weird marks?
What type of balance does it have?
What I see is an attempt to change a serial number. As Warwian suggested, a look at the balance area would help. Trial watches usually had Guillame balance and the serial number was engraved near teh balanve as well as on the bridge. If that number is there and different there has been some funny business.
I agree... appears to be '610'
overstruck to become '680'
Not to say it couldn't have been done
at the factory, for whatever reason.
i saw that.. looks factory to me... for some reason... no, I mean the weird Pi symbol before serial number and I checked for Guillaume numbers already. just curious as it brought stupid money at an on line auction.
Abbreviation for "Number" opposite 68001
I\I (with an obscured cross-bar) superscript o
I don't think this is an observatory chronometer. I have seen quite a few of them made by Patek and they are all of much higher quality than this example, especially when it comes to the balance (even though it is hard to make out based on the picture).
learned something today. owned thousands of pateks...never seen the /\/ thing before. movement only brought a rediculous sum on line.
If you look carefully, you will see this is nothing unusual, just No., as LloydB says. The diagonal cross bar is faintly stamped, it is clear enough if you look closely.
I think the answer to the mystery is that the plate with the engraving has been replaced or redone after being marred. The numbers are different size, something that would not have happened at the factory as well as the porr strike for "N" punch. This plate is removable by taking out the screws holding it to the main spring bridsge. It may have occurred as part of a mainspring barrel service when the bushings for the barrel arbor were replaced.
At the risk of flogging a dead horse, one more theory.
The plate with the engraving has to removed to replace or service the barrel winding gear, which often suffers broken teeth. The plate and wheel may have been replaced. If these came from parts, the plate would have been resurfaced and renumbered.