Does anyone know if we have a chart showing which mainspring the different Hamilton watches use. I can't seem to find it if we do. I need to get a mainspring for a 934 Hamilton size 18, 17 jewels movement. I would love to find a chart if we have one so I can use the chart for my different size Hamilton's.
Thans

Harry, Are you talking Hairsprings, or mainsprings?

Sorry this hairbrain is meaning mainspring.
Thanks Mike

as of 1935 . . .

Or go to casker and look it up at;

http://jewelerssupplies.com/sh...4a2dbc1bc479efd8dbb2

The MS-JA201 is what you want and you can order it here;

http://www.jewelerssupplies.co...lton-mainspring.html

Thank you David. I will go to Cas-Keer thanks. Also did you get the chart above off this site? If so where. Thanks,

P.S. I went to the two links but the first link brings me back here. The second like took me to Cas-Keers Hamilton mainspring page. Thanks again.

Hello Harry:

If you e-mail member Joe Cermak at;

clockandwatch@verizon.net

He can provide you with a Pocket Watch Mainspring Chart, for Most Americans Pocket Watches Using This You Should Have No More Problems Finding and Cross Fitting Your Mainsprings

This is from an earlier post he made in July, and I'm sure he will help you out.

Larry

Thank you very much Larry. That is exactly what I am looking for.
Thanks.