Internet Horology Club 185
ROCKFORD 18S MODEL 10 GRADE 810 MOVEMENT MAINSPRING SIZE QUERY

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February 28, 2016, 00:05
Roddy J. Brunton
ROCKFORD 18S MODEL 10 GRADE 810 MOVEMENT MAINSPRING SIZE QUERY
CAN ANY ONE TELL ME THE MAINSPRING SIZE FOR A ROCKFORD MOVEMENT?
It is a Size 18s Rockford Model 10 Grade 810
21J
Lever
Full Plate
Adjusted
MADE IN 1901


Roddy JB
February 28, 2016, 05:39
Rob Carter
Roddy,

20 X 2 X 21 1/2

An Illinois 18 Sz will work as well. Both us T ends.

Rob
www.pocketwatchrepairs.net
February 28, 2016, 13:52
Roddy J. Brunton
Thanks very much Rob.
I'll go through what I have and see if I have that size.
Cheers,
Rod


Roddy JB
February 28, 2016, 16:12
Rob Carter
Your welcome Rod!! If you can't find one Casker's sells them in alloy. Just look under Illinois JA-402 will work.

Rob
www.pocketwatchrepairs.net