Needed: 10AX or 10AH mainspring

1955mercury's picture

 Anyone have a 10AX or 10AH mainspring they want to sell? I prefer a NOS Bulova or Buloloy. I don't particularly want a Bestfit, etc. Thanks!

Posted May 27, 2014 - 9:13am

I have several used 10AX springs if you want a used one.


1955mercury's picture
Posted May 27, 2014 - 10:30am

Thank you for the reply JP. I may have to resort to a used one. Let's wait just a little longer to see if anyone has a new one. If not, I'll get back with you on buying a used one. I've never had this much trouble finding a particular main spring before.

bobbee's picture
Posted May 28, 2014 - 1:28pm

Did you get the spring, 55merc?

I got a 10AX with some bits missing, the balance cock and the gear on top of the mainspring are gone.

You can have it.

1955mercury's picture
Posted May 28, 2014 - 5:01pm

 Thanks Bobbee. You the Man!

Posted May 28, 2014 - 7:57pm

I have a NOS 10 an,10ba,10bc,10al,10ak;if any of these are interchangeable send me a message.(I think the 10 an might fit but I'm not 100% certain)

1955mercury's picture
Posted May 30, 2014 - 3:25am

Thanks for your reply Denupnorth. These are the ones that will fit it:


The width= 1.40 mm

Thickness= .1025 mm

Length= 11.75 inches

1955mercury's picture
Posted May 30, 2014 - 10:49am

I just located and bought a NOS 10AX mainspring for $3. Thank you to everyone who tried to help me. My search is over now.

Posted May 30, 2014 - 10:45pm

If you want the bits that are missing Bobbee, I will gladley send them to you. I have many 10AX movements and can surley spare one for you old friend.