Jump to content

Hamilton Thin O Matic caliber 626


Recommended Posts

Offered to service and refresh my 90 year old father-in-laws 70 year old Hamilton Thin O Matic caliber 626 in a solid gold 14k case.

Has high sentimental value as it was the last Christmas gift he received from his grandmother before her passing in 1960 or so.

On first inspection, the watch looked like it just needed a good cleaning and full service. At full wind, it timed at 90 per day fast and 265 amp with very low beat error.

Upon opening the watch up however, discovered that the previous watchmaker took some liberties (missing parts!!!).

Fortunately there are several Hamilton 629 donor movements to be had on eBay for relatively low $$, and since this a cost no issue repair/restoration for my father-in-law, expecting a happy outcome. 

Still amazed at what some folks will do to unsuspecting customers (my father-in-law says he thinks he last had the watch serviced back in the 1980s).

IMG_1830.jpeg

IMG_1831.jpeg

Edited by Levine98
Correction
Link to comment
Share on other sites

8 minutes ago, Levine98 said:

Offered to service and refresh my 90 year old father-in-laws 70 year old Hamilton Thin O Matic caliber 626 in a solid gold 14k case.

Has high sentimental value as it was the last Christmas gift he received from his grandmother before her passing in 1960 or so.

On first inspection, the watch looked like it just needed a good cleaning and full service. At full wind, it timed at 90 per day fast and 265 amp with very low beat error.

Upon opening the watch up however, discovered that the previous watchmaker took some liberties (missing parts!!!).

Fortunately there are several Hamilton 629 donor movements to be had on eBay for relatively low $$, and since this a cost no issue repair/restoration for my father-in-law, expecting a happy outcome. 

Still amazed at what some folks will do to unsuspecting customers (my father-in-law says he thinks he last had the watch serviced back in the 1980s).

IMG_1830.jpeg

IMG_1831.jpeg

Feel for you. Can't believe the unprofessionalism of some watchmakers. Mark's course really does teach us well.  Keep us updated with your service.

  • Thanks 1
Link to comment
Share on other sites

37 minutes ago, RichardHarris123 said:

I don't understand, you said it was running well with parts missing?  

I mis-stated. With a manual wind it appeared to run OK on the timegrapher. It also set fine. During my initial exam and before I opened the case it didn’t dawn on me to check the autowind since I never imagined someone would salvage parts from what was surely a clients watch.

it wasn’t until I opened the case that I realized that much of the autowind mechanism had be scarfed. My guess is the last watchmaker figured my father-in-law would not notice since he actually hardly wore the watch (I’ve never seen it on his wrist and I’ve known him since 1982).

 

Edited by Levine98
  • Like 1
Link to comment
Share on other sites

18 hours ago, Levine98 said:

it wasn’t until I opened the case that I realized that much of the autowind mechanism had be scarfed. My guess is the last watchmaker figured my father-in-law would not notice since he actually hardly wore the watch (I’ve never seen it on his wrist and I’ve known him since 1982).

one of the problems with guessing is did you guessed correctly? For instance your father-in-law takes the watch in for servicing is an automatic watch don't you think he would notice that it doesn't automatically wind anymore? Seems like that's something you would notice?

so other scenarios would be the automatic winding ceased to function and the parts were removed. Although it seems like you would return the parts to the customer. Plus the customer would know that it's now a manual wind watch is not a automatic wind watch. then if this did occur didn't necessarily occur with the last watchmaker.

 

then for those that would like to see what the watches supposed to look like with all of its parts

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Hamilton_629

 

 

 

Link to comment
Share on other sites

1 hour ago, JohnR725 said:

one of the problems with guessing is did you guessed correctly? For instance your father-in-law takes the watch in for servicing is an automatic watch don't you think he would notice that it doesn't automatically wind any

Honestly don’t think so. My father-in-law is an extreme introvert who lives completely in his head (retired mathematician & physicist). In spite of his genius, even when he was vital he couldn’t refold a paper map or figure out how to work the car radio.  I know he never wore the watch and doubt he ever even knew it was an automatic wind (because he would never have bothered to associate “Thin o Matic” with auto wind.   

anyhow academic now—he suffered a stroke 3 years ago and lost his wife of 67 years during the pandemic—doesn’t wear a watch or say much of anything now (we take care of him). He honestly doesn’t even remember when he got it from his grandmother, but does know she gave it to him sometime a long time ago (must be between 1959-1961).

my wife found it while cleaning up/sorting through some of his stuff since she is responsible for ensuring his things are in proper order—she wants me to restore the watch so he can pass it on to his oldest (my brother-in-law) when the time comes to sort out his legacy.

  • 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.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I agree with @Waggy, no need to adjust. That looks very good to me. The factory specs for 7S26 are something like -35 to +45s/day, but they are usually better. The amplitude is good. When wearing, the most important positions are dial up, crown down and crown left. You need to regulate so that these positions average out to about zero. Crown down is showing +14, so you may have to set dial up to slightly minus s/day. The absolute values of +/-s/day don't really matter, as long as they aren't too far out. The only way to get good accuracy is to wear it for a couple of days, recording the errors, and gradually tweaking.
    • @Jon The link is no longer working and I wanted to see that demonstration again. Is there any chance you can make it available again? I'd appreciate it!
    • Or, if you have a staking set or jewelling too, just use one of the stumps. You can choose a fine tip to fit inside a jewel if necessary.
    • Good morning,   To be honest, I'm not sure I trust my own logic anymore 😅. But here's a picture of my own (failed!) attempt to install a new rotor axle. I punched way to hard and even split the metal of the rotor. My thinking was that, in my case, the axle sits "deeper" in the rotor and hence the rotor would be closer to the movement plates. Vice versa, I was thinking that a very light punch could cause the rotor to sit rather high. But not sure that makes sense because in both cases, the flat part of the axle and the rotor align equally.     Sorry, but is he saying that the outside of the caseback has been polished to such an extent that the inside of the caseback has deformed/sunk??? That sounds crazy to me because those casebacks are thick! Can you see any signs of that on the inside of the caseback? Have you tried screwing in the caseback a litte bit more or less so that the supposedly "sunk" part of the caseback would move from 9 o'clock to e.g. 6/7 or 11/12 o'clock?  If the caseback is truly deformed, maybe it could be punched/pressed back into shape (e.g. with glass/caseback closing press).      I agree with your choice. But yea, Rolex makes it VERY hard for independent watchmakers to do a perfect job because we can't get (original) parts easily.      Your pictures aren't too bad. But still impossible to see if the rotor isn't perfectly flat. You'd have to look at it with your loupe, from the side (like the pictures), and turn the rotor to see if the gaps (with the automatic bridge plates) increase/decrease.     Finally... how is the up/down play of the rotor? To test, take a toothpick/pegwood and press on the small triangular side of the rotor next to the axle (NOT the big side where the weight is. But the opposite side.). Does that lift up the weight-side of the rotor? There can be some play, but it should really be minimal. If there's too much play, a new spring clip is the first thing to do. After that, one could play around with the jewels. This is too much:
    • could start a new sub-brand: Bergeon-Pro Worked for Apple phones! Ah they already beat me to it:  
×
×
  • Create New...