Replacement Rechargeable Battery Compatible with Seiko Kinetic Movement : MT920 / 3023-24X

Restore energy storage in a compatible motion-powered watch with this MT920 rechargeable battery, designed for Seiko Kinetic movements that use part number 3023-24X. Compatible movements:

• 5J21, 5J21A, 5J22, 5J22A, 5J23, 5J23A, 5J32, 5J32A

• 7D46, 7D46A, 7D48, 7D48A, 7D56, 7D56A

• 5S21, 5S22

The MT920 stores electrical energy generated by the watch’s Kinetic charging system and supplies power to the movement. It is a rechargeable secondary cell—not a disposable silver-oxide watch battery.

Package Contents

1 × MT920 rechargeable battery with dedicated connection tab.

Seiko movements use different rechargeable cells, contact plates, terminal tabs, and part numbers. Please confirm the movement calibre, original battery code, Seiko part number, terminal orientation, and connector shape before ordering. A bare MT920 cell may not directly replace an assembly fitted with model-specific connector plates.

Do not substitute a disposable alkaline or silver-oxide battery. The movement’s charging circuit is designed for a compatible rechargeable cell and may damage an unsuitable battery or the watch.

Professional installation, system resetting, and sufficient initial charging may be required after replacement. Follow Seiko’s charging instructions for your movement.