RAYOVAC 377( SR626sw )
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....
SR66, SR626sw, AG4(alkaline cell), RW329, BA, D377, 280-39, SB-AW
The physical dimensions of this battery are
Diameter 6.8 mm x Thickness 2.6 mm