Thread: Elgin grade 772 mainspring
04-10-2017, 01:23 PM #1
Elgin grade 772 mainspring
My Elgin catalog predates this grade... Can anyone tell me what mainspring the grade 772 uses?
04-10-2017, 06:27 PM #2
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- Jul 2015
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Re: Elgin grade 772 mainspring
I see that is 13/0 movement...
Looks like Swigart shows a part number 6003 for a size 15/0, (Grade 559) I realize this is a slightly smaller size...
The barrel it goes in is a 5535. Don't know if you can find dimensions and compare these parts, but hope it helps.
Last edited by PWfanatik; 04-10-2017 at 06:47 PM.
04-11-2017, 05:08 PM #3
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- Aug 2016
Re: Elgin grade 772 mainspring (By: Dave Coatsworth)
My Elgin Service Manual states the 772 uses the same Dura Power mainspring as the Grade 730. Here's a link to this mainspring on eBay:
04-11-2017, 07:19 PM #4
Re: Elgin grade 772 mainspring (By: 18k BPH)
Awesome! Thank you!
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