Jump to content

Dave Pak - New To Watch Repair


DavePak

Recommended Posts

Hi,
I was retired for two years from an R & D lab and took a part time job in a Jewelry store. The job was for a watch repairman (will train), but the training was very limited.
I find this field very interesting and may have pursued it in my youth. I'm currently working on a Hattori VD85 by replacing the movement but, I'm confused about setting the
"Day" hand. I broke the stem and have to retrieve it before continuing (don't tell the boss). I'm going to tackel the stem retrieval but, would like to know if there is a procedure to

setting and indexing the "Day" hand.

 

P.S. Mark does such an excellent job with his videos. He gives me the confidence to pursue this career.

Happy to find such a site.

 

TKS,

 

Dave.

Link to comment
Share on other sites

Hello Dave and welcome from me, I don't know if you have this but hope it helps,

 

https://docs.google.com/viewer?a=v&pid=sites&srcid=Z2xlYXZlYW5kY28uY29tfHRlY2huaWNhbHxneDo3MDMyNTY3MjQ5YjAzYzY5

 

Cheers,

Vic

Hi Vic,

Good stuff. I responded to clockboy (see post) and maybe it's me but, I have no way to determine where the "Day" hand post is located. I don't know where to place the hand.

 

Thanks again,

 

Dave.

Link to comment
Share on other sites

Hello Dave,

The PDF shows the dismantling procedure numerically from 1 to 23 and the assembly is from 23 to 1.  It also shows a pic of the dial for your model.  Can you work out where it goes by following the procedure or does it not help.

The only other thing I can suggest is a few pictures of the part and movement so we have a better idea of the problem.  I am sure someone will be able to advise.

 

Cheers,

 

Vic

Edited by Vich
Link to comment
Share on other sites

Dave,

Can I suggest that you start a separate thread in the help and advice and post the query with some photos there as this thread was started by Stryker11 and there are two separate queries going on at once. I will hook up to your query there.

Cheers,

Vic

Link to comment
Share on other sites

"I have no way to determine where the "Day" hand post is located. I don't know where to place the hand."

 

Dave something occurred to me, I once worked on a Rotary watch that had a Miyota movement and two sub dials plus moonphase and some other pretty useless decorative stuff.  I had not realised that when I removed the tiny hands from the subdial I had effectively decapitated the pinions and the ends were left in the hands.

I had to get a replacement movement as a fix was not feasible. Is the hand post you refer to the pinion and if so is it possible it has been broken off meaning there is no where now to affix the hand.  The pinions I worked on were extremely thin and fragile and any sideways pressure was always going to snap them the hands need to be removed vertically.

 

Just a thought,

 

Vic

Link to comment
Share on other sites

Sorry guys,

I didn't realize I had 2 posts going. Didn't mean to not respond to some of these posts.

Let me get some pics.

I'm trying to remove the broken stem first without too much disassembly.

 

Talk to you soon,

Dave

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

    • I'm assuming that every time you set the watch you are work hardening the detent spring, maximum hardening is  where it meets the plate due to maximum deflection.   That's why it snaps there.  The Young's modulus may be the same but after it's reached its maximum yeid strength it breaks.  My mechanic engineering is very rusty, correct me if I'm wrong. 
    • Ah ok yes that makes sense to polish it where the arm starts to form from the body of the bridge, i thought you meant the underneath of all the arm.
    • this is something I've never quite understood about the some of the Swiss companies. In 1957 Omega was using 9010 for the keyless parts with epilam. there's been a slow migration towards using heavier lubrication's but still typically oils and epilam to keep them in place. When it seems like 9504 works so much better.  
    • OK, welcome in the world of alarm clocks... I guess the 4th wheel is dished because it is from another movement. If it was not dishet, then it would not mesh with the pinion of the escape wheel, am I right? The marks of wear on the 4th wheel pinion doesn't corespond to the 3th wheel table position, at list this is what i see on the picts. Calculating the rate is easy - there is a formula - BR = T2 x T3 x T4 x T5 x 2 /(P3 x P4 x P5) where T2 - T5 are the counts of the teeth of the wheels tables, and P3 - P5 are the counts of the pinion leaves. Vibrating the balance is easy - grasp for the hairspring where it should stay in the regulator with tweasers, let the balance hang on the hairspring while the downside staff tip rests on glass surface. Then make the balance oscillate and use timer to measure the time for let say 50 oscillations, or count the oscillations for let say 30 seconds. You must do the free oscillations test to check the balance staff tips and the cone cup bearings for wear. This kind of staffs wear and need resharpening to restore the normal function of the balance.
    • Glue a nut to the barrel lid, insert a bolt, pull, disolve the glue.  Maybe someone will have a better answer. 
×
×
  • Create New...