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Dr. Jon
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DDr. Jon replied to the thread Cuivre ladies pocket watch vintage.Welcome to this forum. We need to see pictures of your watch to give you much information. Cuivre is French for copper. This is...
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DDr. Jon replied to the thread Novice trying to buy a pocket watch for my father (collector).The 18K mark is either Swiss or American and has no legal significance. The Swiss had a hallmarking system that was reliable when used...
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DDr. Jon replied to the thread Help me identify this pocket watch..One thing Spikens probably learned from Dent was to import lower cost Swiss watches to augment stock. This is decent but entry level...
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DDr. Jon replied to the thread Help me identify this pocket watch..It could date from the 1920's. It is more likely to be stopping due to a bent or broken pivot on t4he balance wheel. The chips on the...
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DDr. Jon replied to the thread Lanterndluhr Reproduction, how old and who made it.Here is close view of the dial here is an enhanced view of the marks at the left There is number, 338, scratched on the right side...
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DDr. Jon replied to the thread Lanterndluhr Reproduction, how old and who made it.My kit came with a case and oil to rub in. The US dealer wrote me that the oil finish does does not last so I used a water based...
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DDr. Jon replied to the thread Lanterndluhr Reproduction, how old and who made it.I have seen a few Sattler Vienna replicas and I have built one of their kits. The Sattler Vienna reproductions I have seen do not look...
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Dhttps://www.watchtime.com/featured/hands-on-debut-the-j-n-shapiro-resurgence-made-in-the-usa/ Very nice article. The entry level price...
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DDr. Jon reacted to wisty's post in the thread Lanterndluhr Reproduction, how old and who made it with
Like.
Sorry, can't help with the movement, but I have a couple of what are reputed to be mid 20th century reproductions with very very... -
DDr. Jon replied to the thread Lanterndluhr Reproduction, how old and who made it.I do not know what to think on this. I suspect the case is new and the movement old made up from old parts. The reason I refer to it...
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DDr. Jon posted the thread Lanterndluhr Reproduction, how old and who made it in Your Newest Clock Acquisition.Here is the clock as set up, and, now running. I posted some issues I encountered while overhauling it. It survived my efforts and is...
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DDr. Jon replied to the thread Patek Philippe lady's pocket watch.I believe this is by Patek Philippe. It has unique Patek features. You can be more certain by request an extract from the archives.
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DDr. Jon replied to the thread Rockwell instrument.Rockwell did not make this clock. The initials "SXY" are those off the American Company that imported it, probably from Switzerland.
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DDr. Jon reacted to rstl99's post in the thread Presentation (2023): Julien Le Roy and his four sons (by RStL) with Like.
I recently gave a talk to our local NAWCC chapter about famous French horologist Julien Le Roy (1686-1759), and his four sons (the most...
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DDr. Jon replied to the thread Asymmetric Pendulum Swing on Long Duration Vienna.As I wrote this twist only occured when I had the crutch mis-aligned such that it hit the limiter as it unlocked. I was able to...
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