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Removing Connon Pinions

From Horology magazine, December 1937

Suggestion Department
Removing Connon Pinions
By H. W. PETTENGILL

There are many ways of removing cannon pinions from small wrist watches and most of us, at some time or other, have broken a center post in so doing. For some time I have used a four- jaw pin-vise. 


First remove the balance wheel, hands, dial and hour wheel. Then tighten the vise on the cannon pinion. With a slight turn and gentle pull the tightest fitting cannon pinion comes off easily, quickly and safely.


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