RAYOVAC 379 ( SR521sw )
Recognised as one of the largest and most trusted of battery manufacturers,
Rayovac watch batteries are chosen by watch professionals the world over
This battery is a direct replacement for the following battery numbers....
Citizen 44, SR57, SR927, SR927W, AG7(alkaline cell)
The physical dimensions of this battery are
Diameter 5.8 mm x Thickness 2.1 mm
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