How to Close Pivot Holes on a Pocket Watch Using Watchmakers Staking Tool
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- Опубликовано: 6 окт 2024
- I'm going to be using my staking tool set to close the pivot holes on a pocket watch. Closing pivot holes was a regular practice on watches with the low number of jewels. It was a common job that the watchmaker had to perform almost daily. Sometimes you had to do it several times a day. If the pivot holes are too large, you're going to have a loss of power and that watch won't run well. More than likely the watch will be running slow- it won't be keeping good time. Here's the brass plate that we'll be closing the hole up on today. it's from an Elgen size 18, 7 jewel pocket watch. You can see the pivot hole that will be closing. That indention right there is called an "oil sink" and that's where you place your oil when you're lubricating your pivot. So let's talk a little bit about the pivot. Your watch has gears in it and those are called "wheels" in the watch trade. Each one of those gears has a shaft that runs through it, and the very tip of that shaft is called a "pivot". Now the pivot is a special hardened steel and it's also been highly polished to reduce friction. So here's the issue you have: you have the hardened steel on the pivot poking through the hole that's been drilled into the brass plate, which is a LOT softer than the hardened steel. Guess what's going to happen over time. That hardened steel is going to wear the hole in that brass plate and make it LARGER as that gear continues to spin around. This is usually caused by lack of lubrication or lack of cleaning and proper maintenance of the pocket watch. The watchmaker also found on some NEW watches the pivot holes needed to be closed because they were improperly sized at the factory! Let's inspect that pivot hole that we're going to be working on under the microscope.
This video and channel is about antique pocket watch repair/restoration for the hobbyist, beginner and intermediate pocket watch enthusiast!
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Хобби
Just curious, could the brass holes be reamed out and jewels be added to the brass plate? Or is it too thin because it wasn't engendered to have jewels? Thanks for taking us along. 👍
Good question! Yes, it could be done that way. If the hole was too large or or misshaped, that was a common practice - to ream out the old pivot hole and to either insert a jewel (with a setting) OR to rivet in a two piece bushing and then redrill a new pivot hole in the bushing.
Good day, love your videos, very easy on the ears and the brain....easy to take i with simple language. I see someone already asked about inserting a jewel, is it also advisable to replace the bush with a steel bush??? Instead of the usual brass bush??
Thanks very much.
Enjoy your videos, and learn heaps from them.
Thanks again
Mike.
@@michaelfonseka7657 Thanks for your kind comments! I really don't know the answer to your question. You may want to go to one of the watch repair FB pages and ask that question! (All of the ones I have ever seen are brass).
@@myhobbiesarenotcheap thank you.👍🏼👍🏿
@@michaelfonseka7657 Steel against steel will wear out very quickly. Dissimilar metals self lubricate. That's why brass or nickel is used on the upper and lower plates.
Hi, I’m new here and new to staking tools so your videos are helping me a lot. Thanks for all you time.
I'm so glad they are helpful!
Fantastic lesson! Thank you! I enjoy your teaching method. The way you "discover" that flat-faced solid punch as the stump solution is like we figured it out together. I think that kind of natural communication ability is most helpful in keeping the student (me) engaged in a way that helps retain the information. Anyone would be blessed to be your apprentice.
Thank you so much for your very kind comment! My wife always tells me to just be myself and talk as if I were "mentoring" someone in person. That is what I strive to do in every video. Thanks for watching!
@@myhobbiesarenotcheap You are a skilled communicator! So very easy to understand and listen to.
Thank you. Well explained and filmed.
Thank you so much!
Another 1st rate video, well explained and presented. Learning so many new 'things' from your channel and videos. They're really a massive help in understanding the many mysteries of this satisfying 'hobby'. Many thanks for putting them together and sharing with us. Ron😀
Thank you so much for your kind comments. I am so glad they are helping you! I agree, this is a very satisfying hobby!
Thank you, your videos are always top notch. I have learned a lot from you.
Glad you like them! Thank you for watching!!
You are very very useful to all watch makers many thanks ❤❤❤
Thanks again for another great lesson. That pivot hole was perfect!
Another super video. Love it.
Thank you so much for making these videos.
I like how clear you are and even have some labels for what tools you are using. I can screen shot.
I also like that you speak slowly and don’t have some rubbish music which sometimes serves as a distraction.
Have you ever tried using a staking set to help remove a stubborn screw? I basically work on wrist watches and sometimes a caseback screw is very tight and needs a massive amount of downward pressure from screwdriver head to screw while turning slowly.
I’m thinking have the screw drive head on the staking set and tighten up and then slowly turn the entire watch caseback clockwise.
What do you think?
Thank you for your kind comments! Your idea sounds like it might work! Let me know how it turns out!
Good job explaining all of this
Thank you sir! Very well made, entertaining, and useful!
1st rate video,Thanks
Many many thanks!
Nice job, clear instructions and demonstration.
Thank you very much for your kind comment. Thanks for watching!
Merci pour votre Partage, c'est toujours avec plaisir que je visionne vos videos👍 , justement j'ai un probléme similaire sur le fonctionement d'une montre bracelet⌚ daté de la grande guerre 1914-18, la montre n'ayant pas eu de revision en 4 ans et fabriqué au plus vite et a bas coup sans rubis, a beaucoup de jeux sur les platines , je l'ai assemblé pour voir mais depuis le nettoyage des platine avec la buchette de bois, le jeux au pivots c'est agrandi le fonctionement est aléatoire, vos conseils sont donc les bien venus, Sympas votre platine de montre coq👍 , Au plaisirs de vous retrouver sur la chaine , Bruno du 44 France ,Bretagne sud
I am so glad these videos may be helping you!
Great video, tnx a lot :)
Glad you liked it! Thanks for watching!
Hello,
I am very new to this hobbie and I have been watching a lot of videos and I must say the way you demonstrate and explain what your doing is wonderful.
About your staking set. It appears you have a very fine and complete set. After looking at sets on ebay, I am seeing that the quality and especially the completeness may not be there. So I am asumming one may have to purchase, maybe multiple sets to create one as complete as yours.
You mention "invertor" punches. Are all sets considered "invertors"? I do hope this makes sense and I have the terminology correct.
Thank You
Thanks for the kind comment.
@@myhobbiesarenotcheap
Hey,
Based on your great explanation and with some searching on eBay, I bought myself a set of the Marshall's.
Thanks again.
I am working my way through your videos.
Could the 'pivot hole' also be considered to be a 'bearing' ? I'm new to all this and find it all very fascinating. The actual function of the 'jewel' is perplexing to me. Are the 'jewels' machined just like a bearing or bushing for the pivot to ride on?
Yes, the pivot hole and the jewels can be considered "bearings". The jewels reduce friction and make the watch more accurate. The pivots last longer when using a jewel.
@@myhobbiesarenotcheap Thank you !!!!! I understand now, and am amazed at the incredible high-precision boring of the hole through the jewel.