Jump to content

Felsa 4009 service


Recommended Posts

Nothing special to report here but this Felsa feels kinda different than the other watches I have worked on.  Granted, I am an amateur with limited experience. 

The open mainspring barrel was a surprise for what appears to be a higher-end movement--kinda EB8800 feel.  Frankly, I left it untouched.  It is my watch from my box-o-watches, and I was not in the mood for dealing with an odd mainspring configuration this evening.  Maybe next time. 

The automatic wind mechanism was more integrated into the movement than the ETA movements I have worked on.

Lots of springs.  Ugh.  The click spring was the most unusual that I have seen. The plate screw shares the click...essence of Roskopf.  It is almost all back together now except for calendar works.  I will finish it tomorrow.

 

2022-12-13 20_58_48-20221213_145913.jpg ‎- Photos.png

2022-12-13 20_59_13-20221213_150332.jpg ‎- Photos.png

Link to comment
Share on other sites

The Felsa 30 jewels version  is a true workhorse, better yet the  41 jewels variant, heres one in vintage Fortis Stratoliner ,

https://images.app.goo.gl/U3Rs5kJseUEZvhkj8

Rgds

 

 

29 minutes ago, Nucejoe said:

The Felsa 30 jewels version  is a true workhorse, better yet the  41 jewels variant, heres one in vintage Fortis Stratoliner ,

https://images.app.goo.gl/U3Rs5kJseUEZvhkj8

Rgds

 

 

I see the link gives error,   Google will bring you images of the watch. " Vintage fortis Strstorliner "

The self winder module integrated in mainplate is unique, not to mention other details. Beautiful pinion leaves, etc. 

Link to comment
Share on other sites

45 minutes ago, mikepilk said:

I have a 30J Felsa 4000N. The auto winding is a bit unusual, but works well. I was impressed by the overall quality. It runs really well. You can buy them surprisingly cheaply. I thing they are an under estimated and great value movement.

I was going to ask about quality. On one hand some parts appears to have a bit beefy and engineered while others have that cheap stamped look about them. 

Do we get to see the dial?

Link to comment
Share on other sites

 I don't know about its hairspring quality, but major part of the rest is superior to ETA, jeweled winder rotor bushing and jeweled barrel arbour bushing,  in 30 and 41 jewel versions, excellent pinion leaves, day changer a bit lazy however.

 

 

 

Link to comment
Share on other sites

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.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Thanks, ManSkirtBrew.  I started looking for a setup like yours and ran across this.  It was about half the price of the JKA Feintaster (depending on what auction you were in), and it's a Bergeon.  I bought it because I thought the price was fair (eBay - Buy it now), and I'm a sucker for vintage tools. It also has a table, so it should be easy to use for measuring jewels. I wonder if the the contact points can be changed out. Bergeon seems to manufacture new tables and accessories for the contemporary dial version. What do you guys think of it? I'm sorry this post seems to have taken a detour. I'm new here so let me know if I should start a new topic.
    • This is a flying cutter, usual one. The cutter itself is shown in the pictures in the first message, it is made of broken tungsten carbide drill bit. I asure that all the angles of the cutter are as they should be. I have video - little older one - that I made when onse making the same kind of winding pinion for a Poljot 2200, which is even smaller than this one. It is not easy to see in the video, but the tool rest moves about 1mm towards the object in Y direction and then returns back untill cutter is rotating. Then the spindle is rotated one tooth ahead and everything repeated untill all teeth are cut.
    • After a bit further research could it possibly be an AS 970?
    • Latest project was a non-running ebay purchase with an FHF70 movement. I stripped and cleaned it, reassembled it, and got it running. So far so good, nothing damaged AFAIK.  I was oiling the top jewel on the balance (the one in the cock) which was a slightly unusual shock setting. I removed the spring (3 leaves) which was part of a chaton holding the cap jewel. This left the hole jewel behind which I retrieved with rodico and then lost it. I was taking it off the rodico, very gently as I thought, with tweezers, and then it just disappeared.  Fast forward a week, I got a donor movement, non-running, with the plan to just take the shock jewel that I’d lost. It was the same movement but had standard incabloc settings, and was steel rather than copper/brass.  I changed the cock and balance complete and it ran, not very well. I switched the lower jewel setting, cleaned and oiled both jewels and the replacement balance. Without the pallet fork the balance swings very nicely with a puff of air. With the fork in place, balance out, it flicks side to side nicely with power in the mainspring.  Put them together and it doesn’t run. The impulse jewel sits in the fork and it stops.      Any suggestions how I proceed? In case you didn’t follow that I have 2 FHF70 movements, nothing broken as far as I can tell, but mixing up the balance wheels and jewel settings results in a non runner. 
    • Oh and this almost perfect third wheel pivot and slightly set mainspring  Ah ok yes i see what you mean, good idea. I'll try that if i fluff this one up. The image isn't great quality but i like the idea though.
×
×
  • Create New...