My watch stopped working. I think I just need to replace the battery in it. how do I get the back of the watch off to do that?
Bulova Accutron watches were originally designed to use Mercury batteries of 1.35 volts, since they were the only type manufactured then. The pic (left) shows an original 214 all-metal "top hat" cell, before 387 cells with the plastic spacer became available. In most areas of the world, mercury-based batteries are no longer available, due to environmental concerns related to the safe disposal of them.
The Tuning Fork watches manufactured by Esa (e.g the f300 Omega) were designed to run on either mercury or silver oxide batteries without any adjustment, provided the last repairer to work on the watch set up the index mechanism according to factory specifications.
It is strongly recommended that you do not replace batteries yourself, as special tools are required to open the watch case without damaging it. The only exception to this is the Accutron 214 model, which has a small battery hatch on the back.
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