Jump to content

need service manule


vinn3

Recommended Posts

3 hours ago, Nucejoe said:

Valjoux 724 was produced for a short time and was replaced with 729 .

Manual of which would do, If you can find one.

Ni

   thanks;  that answers a few questions in my search.!  the first  is which screw holds the stem in.

Link to comment
Share on other sites

8 hours ago, vinn3 said:

   thanks;  that answers a few questions in my search.!  the first  is which screw holds the stem in.

To release the stem you loosen the lower one of the two screws by the stem.
I attache a service manual to the 72 but unfortunately with the wrong complication but in the 60's the tech sheets didn't always be the best.  ;) 
If you need more help it's better to continue in an other thread.
 

Stem release.jpg

Valjoux 72_88_721.pdf

Link to comment
Share on other sites

Nivada:  The 30 mm mvt. is out of the case and stem "set in place".   you might notice,  i had to remove one of the levers to get a straight shot at the secont case screw.   i'll replace it and move on to cleaning.  vin

fair shot.jpg

open case.jpg

Link to comment
Share on other sites

    steping back from a complicated mvmt. repair;  i opened  a 1950's west clock wrist watch.  German made case and US mvmt..  it has a very unique stem set lever.  one of the 4 scews holding the back plate holds a lever attached to the stem set pin.  vin.

008.jpg

Link to comment
Share on other sites

33 minutes ago, Watchtime said:

Westclox was founded in 1885 In Illinois by Charles Stahlberg and wellknown for the Big Ben and Baby Ben alarm clocks...They also had a plant in Scotland...

 

33 minutes ago, Watchtime said:

Westclox was founded in 1885 In Illinois by Charles Stahlberg and wellknown for the Big Ben and Baby Ben alarm clocks...They also had a plant in Scotland...

    thanks. i've delt with" the bens"   years ago.  did not know of a wrist watch.  the alarm clocks are still sold in the U S , but,  they are bad,  half plastic  and the alarm off button is bad too.   its marked made in u.s.a..    i wounder?     vin

Link to comment
Share on other sites

  • 2 months later...


  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I picked up a similar amount of these jewels some years ago in a watch and clock fair. Every now and then they come in handy. This week I've got a rubbed in bombe jewel in the balance cock that is cracked and needs replacing. Very handy to have a vintage assortment of these type of jewels!
    • Great diagram with the teeth and pinion count. Simple way to reduce the speed of the hour wheel by the 12:1 minute wheel. Genius and yet so simple. Always good to reinforce the principal by what you have done in your drawing. Keep doing that. I had a drawing on my wall for years showing me this which is very similar to the drawing you have done. Here's a formula to work out the beats per hour of a watch movement. The movement's BPH is dictated by the wheel teeth and pinion count and the hairspring being vibrated to the correct BPH by finding the pinning up point on the hairspring using a vibrating tool.  The reason in the formula there is X2 on the top line is because there are two pallet stones.
    • So I just wanted to say "thank you" again.  The angle is the key bit it seems and yes, it did basically just fall, or float, back into position when I got it lined up just right. I had meant to add that now that I see how it goes in, I totally see how it came out in the first place, and that whomever cloned the original movement didn't pay much attention to the fine details around the setting or how it interfaces with the balance cock or the "rings" on the regulator and/or stud carrier arms.
    • Well I’ve never seen the make before and cannot find any info, I haven’t got it just yet it’s been left to me among a 1970’s sea master and a mid size yeoman. But if anyone has any information on this one please feel free to enlighten me, many thanks 
×
×
  • Create New...