Jump to content

Adjusting a broken Hairspring


jdrichard

Recommended Posts

Update: put in a balance screw i got from Cousins in a pack of 100. Went in well. Put in the second and one and IT SNAPPED OFF! Moved to another hole and the next one snapped off as well. So now mu balance has two nubbies that are leftovers from the broken screws. How do i remove these to try again and are all balance screws so soft?2669315a0d421d6bc90d58c8ce73f3be.jpg6f424eb6285c83056c224bdbd20f80f7.jpg


Sent from my iPhone using Tapatalk Pro

Link to comment
Share on other sites

Try tweezers on the inner protrusion and turn clockwise until it falls out?
Small drill and drill into stub and use new balance weight as a thread cutter?
Drill and tap and use oversize balance weights on both sides ?
All I can think of at the moment.


Sent from my SM-G920F using Tapatalk

Link to comment
Share on other sites

UPDATE. I ended up reaming out the screw and did put in two too heavy screws which really slowed the watch down. So tonight i replaced them with smaller screws and still too slow. So i moved the spring over in the stud and after a heck of a lot of spring tweeting, I got the watch withing +/- 5 seconds per day. All working well but i did forged to edge the hairspring collet over so i now have a big beat error. I am going to let it run tonight and check the time in the morning and determine if i need to address the beat error. This 1890 pocket watch is good for today:)099bb070117d670efe4df516b5753fd1.jpg&key=3b7e1bd3be776c0f45766a4aa31c2edd7613bd9fbbf8c33c9f34bb037b66c882

e640facc8d89c7a962ea7f489a67bddc.jpg

 

Sent from my iPhone using Tapatalk Pro

 

Link to comment
Share on other sites

Fantastic! I love it when a plan comes together... 11/10 for tenacity :woohoo-jumping-smiley-emoticon:
I’m sure you’ll be taking extra care while you tweak that beat error, and you may have altered the thermal compensation ever so slightly, but I doubt that will be something to worry about!

So taking out the balance staff one more time to adjust the beat error is optional. I woke up this morning and the watch was 100% accurate, so the risk is playing with it one more time. Darn!

Sent from my GT-N5110 using Tapatalk

Link to comment
Share on other sites




  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • £4.04 originally worked out to $5, or thereabouts accounting for currency fluctuations. Inflation calculator from 2020 (when the thread was started, though not when Andy coined the term) says we're looking at $6 currently. What currency is the 6.99 inflation adjusted figure cited in the poll? $6 may still seem restrictive, but don't forget that's part of the point. It's a challenge. Thrill of the hunt and all. Diamonds in the rough. Also, and my personal angle on the game, a fun and inexpensive way to learn watchmaking skills.
    • Dear all My first experience servicing a quartz watch after servicing as an hobby my mechanic watches for many years. This is an old Certina that was given to me by a friend, with  a ETA/ESA 9362 movement. Before service I put a new battery and the watch was working. After servicing the movement stopped working. i understand that there might be a lot of reasons for this (including the fact that I used technics and oils from mechanic movements on this one  ), but at this stage I would only need to check if the electronic module is good. Don't have a quartz tester but only a multimeter. You will see on the photos that the battery contact is broken and needs soldering. With the battery in the movement I can confirm that the electronic module had power (1.57v). Question: what basic tests can I do with a multimeter to confirm that the electronic module is good? how to check if the coil is good and if there is pulse in the electronic module? what contacts should I use to test it? (I saw some videos on you tube but was not able to find the specific test procedures for the ETA 9362). Any information to help me check if the reason for the movement to stop is on the electronic or mechanic part of the watch is much appreciated. Many thanks
    • Dear all My first experience servicing a quartz watch after servicing as an hobby my mechanic watches for many years. This is an old Certina that was given to me by a friend, with  a ETA/ESA 9362 movement. Before service I put a new battery and the watch was working. After servicing the movement stopped working. i understand that there might be a lot of reasons for this (including the fact that I used technics and oils from mechanic movements on this one 😞 ), but at this stage I would only need to check if the electronic module is good. Don't have a quartz tester but only a multimeter. You will see on the photos that the battery contact is broken and needs soldering. With the battery in the movement I can confirm that the electronic module had power (1.57v). Question: what basic tests can I do with a multimeter to confirm that the electronic module is good? how to check if the coil is good and if there is pulse in the electronic module? what contacts should I use to test it? (I saw some videos on you tube but was not able to find the specific test procedures for the ETA 9362). Any information to help me check if the reason for the movement to stop is on the electronic or mechanic part of the watch is much appreciated. Many thanks    
    • I have bought without seeing inside before and have generally been luck Michael. If its a screwback case i seem to allow some leniency on the removal of it, i dont know why because I've never struggled to remove a back with very basic equipment.   If everything is inside them, then once restored and keeping time the oris could be worth 20 -30 each, I've paid a lot more Oris date pointers in the past.
    • I use a nylon bristle from a brush to run around the coils or a thin piece of copper wire, you need .1 - .15mm.
×
×
  • Create New...