Adapter ring for 388 button cell – for use with 329 battery

The 388 button cell has not been manufactured for years – but with this POM adapter ring, your watch remains fully functional. The precision-manufactured ring allows the 329 button cell to fit perfectly in all devices originally designed for the 388.

The adapter is made of robust, durable plastic (POM) and ensures that the smaller 329 cell fits precisely into the battery compartment and makes reliable contact. This makes it the ideal solution for anyone who wants to continue using older watches.

Contents:
1× Adapter ring 388, suitable for 329 button cell (the 329 button cell must be ordered separately)

Compatibility
The adapter ring is suitable for all devices that originally used the following designations:
388, 503, 10R10 (historical mercury cells)

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