Jump to content

ISA 1198 Date ring swap


toppercat

Recommended Posts

Howdy all

I am replacing the movement in my old Swiss army Lancer watch. ISA 1198. The original date wheel is black. The one that comes with the new movement is white. Is this an easy swap? Is there a parts exploded view or pdf repair sheet for these movements? 

Link to comment
Share on other sites

It is an easy swap. I guess most calendar wheels are white so maybe it's difficult finding an original black one...

Have you worked on a movement before ? Don't think that there's such a sheet for these movements...

Also, some movements are offered with different day/date wheels (depending on where they are on the dial).

Most have date at 3 o'clock but some have it at 6 o'clock and so on. The difference is the position of the numbers/words.

Link to comment
Share on other sites

5 minutes ago, Chopin said:

 I guess most calendar wheels are white so maybe it's difficult finding an original black one...

As the OP mentioned, he needs to port the date ring from the original to the new mov't.
Not a difficult job but I would not advise about doing any experience or specific tools. Even a lost screw can create new, unneeded trouble. Giving it to a watch shop is safer.
 

Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • 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.
    • Why cut the paper, cut a square around the image and grind to it. 
×
×
  • Create New...