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My watch stopped so I installed a new battery but it won run and it doesn hum any more. Whats wrong?

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My watch stopped so I installed a new battery but it won run and it doesn hum any more. Whats wrong?

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A. If the watch doesn’t hum the coil is probably bad. The wire on an Accutron coil is so thin (0.0006″ diameter) that it can be easily broken. Coil wire can become brittle while the watch is in storage with no battery installed due to repeated expansion and contraction of the wire over the course of many years. Momentary heat generated by high start-up current is usually the proverbial “straw that brakes the camels back”. Occasionally the soldered ends of the wire break at the terminal where the wire goes into the coil. A very few of these coils (perhaps 1 out of 10) can be repaired by applying a conductive compound to the break. Most shorted coils have a break within the windings and can’t be repaired. Back to top #10 Q. Is it OK to run an Accutron that has been in storage for a long time? A. It is definitely not OK. This is one of the common reasons why coils and index wheels fail. When a movement has not been serviced in many years the old oil dries up like paint and the gear train

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