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Rockford Pocket watch info and question "Click" to Login or Register 
Bruce Byrd
Picture of Bruce Byrd
posted
I recently acquired an 18s Rockford with serial #766919.. Looks like it is a grade 930 model #9. It needs a mainspring. Is there more than one part number for this mainspring? Or is it one 18s Rockford mainspring fits all?.. Thnks for any info..
 
Posts: 888 | Location: San Diego, California USA | Registered: December 27, 2002
Mike Miller
posted
One size fits all 18S Rockfords...

Factory # 644
Bestfit # JA-550

Specifications:

Dennison Width: 20
Dennison Strength: 2
Length 22 inches

Metric width: 2.9mm
Metric Strength: .22

T End

I've had a hard time getting any Rockford springs from S LaRose, but Jules Borel has them.

Mike Miller
 
Posts: 539 | Location: Central Illinois in the U.S.A. | Registered: November 22, 2002
Bruce Byrd
Picture of Bruce Byrd
posted
Mike,

Thanks for the info!!

Bruce
 
Posts: 888 | Location: San Diego, California USA | Registered: December 27, 2002
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