Repairing a watch electromagnet coil?
This is somewhat unlikely unless you touch or breath on the coil while changing the battery (almost – the wire is VERY thin) but I couldn’t resist including it! “I have a 70’s sonic oscillator watch (Omega 720) that has a bad magnet coil. The leads from the coil are apparently severed from the board. Is there anyone out there that could possibly repair it? (I don’t know of any available spare parts.” (From: Jack Schidt (jack@wintel.net).) I collect old Accutrons, and have seen this before. If you genuinely believe the coil itself is OK you can remove the coil, and under a magnifying glass attach a fine strand of wire to the fractured lead near the bobbin. You can get this wire from an old ferrite loopstick, etc., Try to find the copper foil Litz type WITHOUT fabric inside- fabric burns easily. Do both leads while you are at it. Prior to soldering, wind the new wire around a pin, to give it a small coil. This prevents breakage from happening again. Likely Omega forgot to do this when th
