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crhfish · 9 April 2011, 12:58 PM

How long should a mainspring last before it needs to be replaced? Considering normal use of a watch. Is there a general guide?

9 April 2011, 12:58 PM	#1
crhfish Member Join Date: Dec 2010 Location: Texas Posts: 159	Life of a mainspring How long should a mainspring last before it needs to be replaced? Considering normal use of a watch. Is there a general guide?