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.