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Gruen 707 mainspring needed [message #5189] Sun, 01 March 2015 21:31 Go to previous message
Messages: 729
Registered: May 2013
Location: Paris, Ontario
Gruen Master
Anyone have a new mainspring for a Gruen 707 they can sell me? '48 catalogue shows dimensions of 1.90 x .12.5 x 320. which i believe converts to 10 x 9.5 x 12.5 in Dennison size?

Doesn't appear to be interchangeable with any other model than the 7 jewel 713 (which i've never seen).

Time, even vintage time, goes too fast for my tastes.
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