Jump to content

Luch 2209 project

kd8tzc
 Share

Recommended Posts

kd8tzc WRT Addict

kd8tzc

Posted
Posted

I have a nice old Luch 2209 that I restored.  One problem I am having with it though is the hour marker seems to wander off ahead of the true hour.  Meaning, it may be 10:55, but looking at the watch face, it looks like the hour hand is a little past 11).  When I installed the hands, I was very careful to make sure that I installed the hour marker and then lined it up to the 12, and then I installed the minute marker so that it was directly over the house market at 12 as well.  This morning while wearing the watch, I had to reset the time twice as it appeared it was an hour ahead of itself before I figured out what was going on.

Any tips on what might be causing this to happen?  It's almost as if the hour hand is about 15 minutes fast, yet it was not when I placed all the hands on.  Here are two pictures showing what I am seeing.

 

Thanks

 

IMG_0928.jpeg

IMG_0929.jpeg

Link to comment
Share on other sites
watchweasol Distinguished Member

watchweasol

Posted
Posted

Hi first thing to check is the hand a little loose on the hour wheel and or if the hand is loose on its centre bush allowing a little movement. checking the movement in the vertical if they are loose it will drag on the way up and drop on the way down, therefore  be behind onnthe upward side 6 to 12  and be infront on the 12 to 6 side. was there a dial washer on the hour wheel  ?.

Link to comment
Share on other sites
kd8tzc WRT Addict

kd8tzc

Posted
  • Author
Posted (edited)

Neither hand is lose... and yes, there is a dial washer.

Playing with the time setting though, I just felt the hour and minute hand snag each other.  Possibly that is the issue.  I know I made sure they cleared each other though... not sure why that would not be the case now.

Edited by kd8tzc
Link to comment
Share on other sites
kd8tzc WRT Addict

kd8tzc

Posted
  • Author
Posted

Okay, so this is very strange.  I pulled the hands, and then reset  them all.  When I was done, the hour and minute hand were both over each other on the 12.  I advanced the time through 12 hours, and now the hour is on the 12, but the minute hand is faster by 18 minutes. 

I'm not sure what to look at at this point.

  • Confused 1
Link to comment
Share on other sites
HectorLooi Distinguished Member

HectorLooi

Posted
Posted

Was the watch behaving like this before the restoration?

Check that the cannon pinion is seated fully and that the hour and minute wheel are engaged properly.

If you remove the hands and advance the time, do you still feel the "snagging" feeling?

  • Like 1
Link to comment
Share on other sites
kd8tzc WRT Addict

kd8tzc

Posted
  • Author
Posted

Hector, the watch was a piece of parts before I started, so I really can't answer that.  One thing I am noticing though is although the hour hand does not appear to slip, I can make it slip with a piece of pegwood when I push on it.  That being said, I would think I need to close the hole in it up, just ever so slightly.  I have a really old staking set (K&D) with a bunch of stakes (about 60 I think).  I thought I recall seeing someone use one to close up the hole in a hand once, and I think it was one of the stakes that tapers a bit, but has an opening on the end that goes over the part that fits around the hour wheel part that it attaches to.  I wish I could tell what size is what though as there are no charts or anything for this set, so I have no idea what the ID is of each of the openings for those that have one.  I do see some stamps on each stake, but I'm not sure what those indicate.  One says "99 K&D" and another says "27 K&D".  Maybe there is something somewhere that describes what each is... I'll have to search online.

Link to comment
Share on other sites
kd8tzc WRT Addict

kd8tzc

Posted
  • Author
Posted

Update... so I tried using my staking set, but I didn't have a taper mouth closing bit that was just slightly smaller than the hour hand (I only have one of those anyhow in my set), but I think I was able to get it a little smaller by lightly using an older jewelers screwdriver that was junk and just lightly peening (or whatever you want to call it) a few spots on the top ridge of the hour hand where it goes over the hour wheel.  This didn't make it overly tight, but possibly just enough.  With magnification, it didn't look like anything really changed on the hour hand, but it does seem a little tighter now.  I did this last night and the watch has been running all night and the hour and minute seem to stay lined up where they should.  I'm sure there is a better method to doing this, and it might be a good idea for me to get a full set of those taper mouth closing bits so I have the right tool next time.  Unfortunately, I bought mine at a garage sale for a steal a number of years ago and it has a mix/match of punches with it.  I'm not sure if you can even buy just those punches separately, but I will take a look.

  • Like 1
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.

×
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • Neverenoughwatches
      404 Club

      By Neverenoughwatches · Posted

      Thats a good record Michael,  i always do a quick scan through sone of the  feedback comments to make sure there are a good few of them relating to sales and not just purchaese.  Feedback can be faked but you can usually spot the dodgy sellers.
    • nevenbekriev
      Deciphering mainspring specifications…

      By nevenbekriev · Posted

      No, trus me, this is totally wrong. Firs of all, there is theoretical lenght for a fixed other parameters (spring thickness, barrel internal diameter and arbour diameter), which will give maximal power reserve. This is written in all text books, but I have never seen in  the text books mathematical expression (formula) of the relation lenght/power reserve. I am to lazy to generate that expression now, but will draw for You the graphical representation of it. As You can see, there is a maximum in the middle, but the slope near the maximum is really small, so even change of the lenght of let say +/- 30% doesn't lead to significant change of the power reserve. More to that, sometimes movement designers put much longer springs in the barrels than the theoretical lenght for maximm reserve.  This is ecpecially in high grade movements. You will sometimes see that the spring covers not the half, but actually 2/3 of the barrel free space. The designers compensate this loss of power reserve by usage of bigger barrels. This way they achieve much smaller difference in full wind / end of power reserve torque. In such case, reducing the spring lenght leads to increasing of power reserve...
    • watchweasol
      Hello from (near) London UK

      By watchweasol · Posted

      Welcome to the forum,
    • watchweasol
      Good exploded movement posters...

      By watchweasol · Posted

      Hi you can get parts/ tech sheets from cousins uk on therir down lost page, also print rest has some scattered about, cas ker, Esslingers, my retro watches, watch guy there is a few to trawl
    • spectre6000
      404 Club

      By spectre6000 · Posted

      I only buy mechanical personally, as it's all that interests me. There are a few electronic movements I find interesting, but they're not the sort I tend to see very often at all, and wouldn't come up in any of my searches. I have been given a few quartz watches over the years, but they all just sit in a bag in a drawer. Once I hit some critical mass, I'll hopefully get enough motivation to either sell or donate them.
×
×
  • Create New...