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Master craft spring winder NEW hook spring fitted

clockboy
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clockboy Distinguished Member

clockboy

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I have sang the praises of the Mastercraft watch mainspring Winder many times here. However one of the springs that hooks onto the mainspring broke and the spare winders hook was worn so I needed to replace. After a search on the net I found this company (UK) https://www.leespring.co.uk

Well worth a visit if you require a spring.This company has a comprehensive selection of springs by size a torque requirements.

This was my first attempt so don’t be to critical. I ordered a extension spring but in hind sight I should have ordered a Torsion spring which would have made the job a hole lot easier. However see pics.

8E5F1DE0-5BB6-413E-B9AD-FE52EDC5824C.thumb.jpeg.24c22b5e892ad8279cab2a167d49b0d6.jpeg

0309DE49-0BA0-40B5-880D-2A2A76C1A3D2.thumb.jpeg.274aea6fe2761207cbed27b22c3bd3a8.jpeg

New spring

356440BE-0E5A-4921-9C9D-2E50909484BE.thumb.jpeg.490749c3198674184b81bde361ce1f98.jpeg

The cutter I used

1A63DF5A-AD7D-4F77-ADD6-8EC3F1EE0BE5.thumb.jpeg.7d17cf73fd9584e92c41d47e60670d63.jpeg

This is how the end hook was created. Held with a cocktail stick and the end pressed into my wood bench with an old screwdriver.

CF70EDB2-0338-4D8E-8CE8-C90AF92EABAE.thumb.jpeg.49e4e3e8dc984ec58db38d3d499b443b.jpeg

I found this the best tool for screwing the new spring onto the shaft.

B4F553FC-4E4C-4D54-B375-E265E8F1C39B.thumb.jpeg.81801edd8dd37d5dbeb8e1d117ff1deb.jpeg

Finished job. The spring is a touch to short but should work.

 

1C127B49-34C8-4B82-929F-E6E7AF81CA1E.jpeg

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    • Neverenoughwatches
      Epilame / Fixodrop

      By Neverenoughwatches · Posted

      I would try the vapour treatment very simple just a simmering pot of the stuff and jewels bluetacked ( not whitetacked this time, you still haven't said if I'm forgiven yet 🙂 ) to the underside of the lid. You're now gonna tell stearic acid can be highly explosive above 90° C 🤣
    • HectorLooi
      Epilame / Fixodrop

      By HectorLooi · Posted

      I guess it also depends on the precision and quality of the watch. He works on vintage watches mainly and surface treatments on 50 - 60 year old watches probably isn't going to make much difference. I read about nano coatings for car finishes. The article claims that nano coatings can reduced the coefficient of drag by 5%. Is that number significant? I don't know. Maybe if you were trying to break the land speed record. But applying that on a 50 year old clunker isn't going to make it go any faster, accelerate better or save on petrol. 🤣
    • Neverenoughwatches
      Epilame / Fixodrop

      By Neverenoughwatches · Posted

      😅 yep certainly overdid it , i wasn't sure if i had enough heat so i went out and left it cooking. You can see the thick frosting, bit like my cherry buns.
    • HectorLooi
      Epilame / Fixodrop

      By HectorLooi · Posted

      5 hours! You have slow cooked it! It must be really tender by now. @nickelsilver posted about his Greiner machine a while back. It had a heated chamber of stearic acid to epilame jewels and it only took 60 seconds. I've tried stearic acid dissolved in ethanol with a flake of shellac. I'm not really convinced by my test results. I conducted a side by side test by coating a mirror with a stripe of stearic acid and putting several drops of 9010 on the treated surface and untreated surface and observed it for several days. The 9010 spread out about the same for both the treated and untreated surfaces. I spoke with my mentor recently regarding epilame and lubricating pallet jewels. He has stopped doing both because he finds no significant improvements to the end result.
    • oldhippy
      Can anyone identify what this is?

      By oldhippy · Posted

      Used with the correct fitting staking punch it will remove the roller. 
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