Jump to content

Recommended Posts

Posted
6 hours ago, Nost said:

Should I attempt to correct the stud curve first? 

This question implies that you think you're going to have to bend the hairspring in several places other than near the stud?

One of the interesting things in watch repair is everyone has different techniques. For me from the limited pictures it looks like a problem around the stud and personally I just fixed the problem everything else should be fine. But I'm looking at a couple of photographs with limited view versus holding the watch in my hand where I might see something entirely different.

Then learning as you go is the typical way all watchmakers learn but before practicing on live watches you really should practice on separate hairsprings balance complete and disposable watch. Hairspring manipulation isn't something you learn fast. A really helpful reference for learning hairsprings is a book by Fried, Henry B: “Bench practices for watch and clockmakers” with a rather sizable section on fixing hairsprings. Another reference can be found at the link below the book Joseph School of Watch Making Personally I download the entire book it's really a wonderful reference but Specifically right now Unit 6 - Hairspring Truing. 

https://www.mybulova.com/vintage-bulova-catalogs

Then I have a couple a images out of Henry's book that you might find helpful. Notice both hairsprings are centered and yes there is no balance wheel there. But notice the terminal curve's there different. You have to be careful with the videos and other sources that are showing very specific ways that terminal curve's are formed because that may not be the way your hairspring terminal curve is formed. The balance complete image that I got shows a very gradual curve similar to figure 90 below. 

hs-f91.JPG

hs-f90.JPG

  • Like 1
  • Thanks 1
  • 2 weeks later...
Posted
On 8/13/2019 at 6:11 PM, JohnR725 said:

This question implies that you think you're going to have to bend the hairspring in several places other than near the stud?

One of the interesting things in watch repair is everyone has different techniques. For me from the limited pictures it looks like a problem around the stud and personally I just fixed the problem everything else should be fine. But I'm looking at a couple of photographs with limited view versus holding the watch in my hand where I might see something entirely different.

Then learning as you go is the typical way all watchmakers learn but before practicing on live watches you really should practice on separate hairsprings balance complete and disposable watch. Hairspring manipulation isn't something you learn fast. A really helpful reference for learning hairsprings is a book by Fried, Henry B: “Bench practices for watch and clockmakers” with a rather sizable section on fixing hairsprings. Another reference can be found at the link below the book Joseph School of Watch Making Personally I download the entire book it's really a wonderful reference but Specifically right now Unit 6 - Hairspring Truing. 

https://www.mybulova.com/vintage-bulova-catalogs

Then I have a couple a images out of Henry's book that you might find helpful. Notice both hairsprings are centered and yes there is no balance wheel there. But notice the terminal curve's there different. You have to be careful with the videos and other sources that are showing very specific ways that terminal curve's are formed because that may not be the way your hairspring terminal curve is formed. The balance complete image that I got shows a very gradual curve similar to figure 90 below. 

hs-f91.JPG

hs-f90.JPG

Thanks @JohnR725

After careful studying of the spring in situ, every alteration I made just didn't address the issue and I began creating new issues. I have opted to obtain a balance complete which should hopefully be the end of that problem. although wile waiting for my new tweezers to arrive, I though to fully assemble the rest of the movement and ran into another snag. The oscillating weight in fouling on the setting lever screw when it rotates... I don't recall this occurring when i first obtained the piece, but I cannot see a way around the issue...

  • Similar Content

  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • HI everyone Some context: I'm "in love" with old Timex. As someone who has always liked watches, I knew Timex (my first watch and another project) but, in fact, the brand had never really caught my attention. By pure chance I bought, in a set of two others watches, a small m24 that was sold as not working (run and stop), which actually started working by setting the date by manually moving the hands (15 days). This coincidence made me interested in its history, its reputation, simplicity/complexity of the movements and also because some were made in Portugal back in 70’s and 80’s. A few days later I found this beautiful 1975 Viscount, m33 (very low price, almost offered) and this is where I need your help.  It is in very good condition and works well (-20s per day is not a problem for me), and although the day of the week changes correctly, the date is "stuck" on the 10th. I live in a small town that only has one watchmaker and when I purchased this watch (and having read about these movements) I thought that since it was something theoretically "simple" (probably not related to the movement), he would easily solve the problem. I couldn't be more wrong. It was as if I had proposed a pact with the devil. He refused and said he wouldn't touch the watch (although he had serviced several of my watches before - Seikos and old Swiss brands). He suggested I wear the watch like this or trash it. As I mentioned in my presentation to the forum, I have some experience in digital watches, but in manual watches I am a complete beginner. I know how to remove hands, crowns and little else. I've been doing my homework, reading the technical manual and watching a few videos on YouTube. I think I can get to the part of removing the dial without any major problems. I know that in the Date Frame there is a wheel that at the top has a tab that activates the Day Wheel and that at the bottom activates the Date Lever My aim is to try not to ruin anything and  get the date working again. The help I needed (I intend to post photos) is that what should I expect? What are the most common problems that cause this system to get stuck (in this case just the date).   PS -  My secondary objective is to buy a strap at a overpriced value from the watchmaker just to rub it in his face that I managed to get the watch working properly. PS2 - In the photos you can see that before midnight the day of the week is already changing but the day of the month has not changed.   Sorry about the english. Best Regards Vasco  
    • What is it from and how did it become bent ? It should bend back - I would heat it whilst bending
    • Ha, same here. I just looked and I've lots of pictures of my cars, be hardly any of me - I have a face better suited for radio. I did find this from about 20+ years ago. I'm the young looking one at the back, under the front nozzle.  
    • I have a 6564 with me what is take a same tropic 12 crystal,most likely have the same parameters for the bezel. Do you need the measurement for that?
×
×
  • Create New...