377 SR626SW Watch Batteries 1.55V

377, 376 and SR626SW compatibility

Many watches list the required cell under different codes, which can make replacement confusing. If your old battery is marked 377, SR626SW, 377/376, SR66 or an equivalent silver oxide code, the products in this category are designed for the same 1.55V battery family. Always compare the marking on your existing cell and the watch manual when available.

The Energizer 377/376 option is a practical choice when you are searching for a dependable battery 377 with stable voltage output for low-drain watch movements.

How to replace a 377 battery safely

Before ordering, check the old cell code and make sure the size matches. When replacing a watch battery, avoid touching the flat surfaces with bare fingers, as moisture and skin oils can affect contact quality. Use clean plastic tweezers where possible and insert the new 377 battery with the correct polarity, usually with the positive side facing up.

Tip: If a watch stops again soon after fitting a new SR626SW battery, the issue may be worn contacts, moisture inside the case or a movement problem rather than the cell itself.