Jump to content

Recommended Posts

The watch is Waltham serial # 2180373,  which according to the Pocket Watch Database  is a model 1877 P.S. Bartlett.  It needs a balance staff, but something is off. 

As far as I can tell, it needs a 986/987 staff, which is supposedly the same as a 1364/1365 staff. First question, what dimension is the "waist" ?  There is a large and small version, but the numbers I've found, like on the Otto Frei site, don't make any sense to me. 

Second question, the collet seat on the staff that I removed does not match the dimensions of the above staffs, they are .91, and I'm measuring ~0.96-0.97 on the original one. Aargh. 

So, what I'm wondering is if there is a Waltham staff with that collet seat dimension? Or am I dealing with a modified balance?  

Enquiring minds want to know, but I'm guessing that I'm finally going to have to bite the bullet and make a staff.  

Edited by dadistic
typo
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.



×
×
  • Create New...