Jump to content

Longines 508

Jansh
 Share

Recommended Posts

mbwatch Super WRT Addict

mbwatch

Posted
Posted

Before anything else, how freely does the balance oscillate without the pallet fork in place? A light puff of air should set it oscillating for 60 seconds.

And without the balance or pallet fork installed, does the train spin very freely without abruptly stopping? Ideally the escape wheel should spin and briefly recoil to reverse direction when some wind is applied.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • Neverenoughwatches
      Tool of the day.

      By Neverenoughwatches · Posted

    • nevenbekriev
      Bizarre state of the balance! Miyota 8200

      By nevenbekriev · Posted

      Of course, donor movement is needed, but the balance/hairspring assembly itself can be saved. OP, You just have to use tweezers and needle to straighten and two tweezers to untwist if needed to rectify the outer coil. What is seen in the middle may be is because the stud pressed to the spring, but we will need pictures after outer coil rectifying. The regulator and stud carrier are snapp-fitted on the antishock assembly. Lift and pry them together with some sharp tool and they will come off.
    • AndyGSi
      Bizarre state of the balance! Miyota 8200

      By AndyGSi · Posted

      A good learning piece but think for the price of a new movement that's all it is. Probably just transfer the rotor if it's Citizen branded.
    • Bonefixer
      Bizarre state of the balance! Miyota 8200

      By Bonefixer · Posted

      I'm no expert, but I'd guess this one is for the bin. Looks like it's been tinkered with by someone armed with a hammer and chisel. When the pallet, escape wheel and balance are all damaged it's beyond repair isn't it? Or a new movement if the watch itself is of value. 
    • Nucejoe
      Bizarre state of the balance! Miyota 8200

      By Nucejoe · Posted

      No need for special tools. Loosen stud screw and just push hairpsring stud out of the hole.  Regulator arm is spring circled around the setting housing, insert cutting edge of a safety blade under it,  opposit ( 180 degrees) to regu arm itself, and pry  half of the circle up, you then see how it all is made at put together. Remove the mobile stud carrier as well,  reinstal in proper order, first goes on the stud carrier, second put the regulator arm on top and press it home. Exactly as nev explained above. Trueing inner coils is done when balance complete is seperated from the cock.   The part thats bent over itself. 1-Unbend hairspring as much as you can when balance is seperated, just grab the hairspring stud in tweezers , grab hairpsring with another tweezers streighten with  strokes as you  move the second tweezers  away from the stud. 2-Move stud carrier and regulator arm as wide/ apart as they go , to provide max space which comes useful in next step. 3- Fit hairspring stud, into stud carrier hole. 4- Put balance and cock ( when attached together) back on mainplate.  5- You have enough space to grab hairspring in  tweezers to shape as you move your tweezers  away from stud.         
×
×
  • Create New...