Hamilton 936 mainspring

Thread: Hamilton 936 mainspring

Results 1 to 5 of 5
  1. #1
    Member Erik_H's Avatar
    Join Date
    Oct 2006
    Location
    Norwegian, Singapore
    Posts
    2,259

    Hamilton 936 mainspring

    I have been running one of my old favourite watches for the last four days, a Hamilton 936 from 1909. As ever it performed beutifully, but this morning while winding it the mainspring broke. The motor barrel did what it was designed to do, so the break did not result in subsequent exciting but unwanted commotion. Now I need to get a new spring, does anyone know of a good source to try out first?



    Erik_H
    Member NAWCC Chapter 149

  2. #2
    Member Shangas's Avatar
    Join Date
    Mar 2008
    Location
    Melbourne, Australia
    Posts
    2,024

    Re: Hamilton 936 mainspring

    Totally unhelpful post here, but...

    That's a handsome ticker! And what's a motor barrel and what was it designed to do? (or not do, as the case may be).
    "Pipes are occasionally of extraordinary interest...nothing has more individuality save, perhaps, watches and bootlaces."

    - Sherlock Holmes.

    'The Yellow Face'.

  3. #3
    Member Erik_H's Avatar
    Join Date
    Oct 2006
    Location
    Norwegian, Singapore
    Posts
    2,259

    Re: Hamilton 936 mainspring

    There is a definition of motor barrel and other terms here:

    http://www.pocketwatchrepair.com/glossary.html

    "Motor Barrel- An arrangement of the mainspring barrel in which the barrel is turned to wind the watch, and the barrel arbor turns as the watch runs down. This has the advantage that the barrel only has to turn when the watch is being wound, which allows the use of a longer and lower-powered mainspring. Motive power to the gear-train is provided by the turning barrel arbor. Also called a "safety barrel" because there is much less chance of doing damage to the watch if the mainspring breaks. In some higher grade watches the motor barrel is jeweled. See also "Going Barrel."
    Erik_H
    Member NAWCC Chapter 149

  4. Remove Advertisements
    WatchUSeek.com
    Advertisements
     

  5. #4
    Member AbslomRob's Avatar
    Join Date
    Jun 2009
    Location
    Ottawa, Ontario, Canada, Canada
    Posts
    5,315

    Re: Hamilton 936 mainspring

    Jules Borel has them for $17 ($16 if you buy three!)
    My growing collection of "affordable" vintages: http://www.abslomrob.com

  6. #5
    Member Erik_H's Avatar
    Join Date
    Oct 2006
    Location
    Norwegian, Singapore
    Posts
    2,259

    Re: Hamilton 936 mainspring

    Quote Originally Posted by AbslomRob View Post
    Jules Borel has them for $17 ($16 if you buy three!)
    Thanks a lot!
    Erik_H
    Member NAWCC Chapter 149

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •