Superior Maxell 376/377 SR626W/SR626SW Micro Silver Oxide
376 and 377 are completely interchangeable with identical functionality
Superior Maxell Micro Silver Oxide SR626W/SR626SW One Battery 376/377
Do not use (inherently low performing) alkaline batteries in place of silver oxide in any timepiece.
Made in Japan
In blister pack or individual package
Dimensions 6.8mm Diameter x 2.6mm Height
1.55 volts 28 mAh
The 376 SR626W is completely interchangeable with the 377 SR626SW
This is a primary non rechargeable disposable battery
The 376/377 is a long life silver oxide chemistry with non-declining power output; alkaline batteries of the same 1.5 voltage start at 1.5 and at the half life are at .8 volts, silver oxide start at 1.55 volts and maintain the voltage until expiring. This is why silver oxide batteries are always used in watches, insulin pumps and sniper scopes or mission critical situations. Never use alkaline batteries for any device requiring a steady constant voltage. A watch with declining voltage cannot give the correct time.
Fits and Replaces:
This is from the American Watchmakers-Clockmakers Institute 2008 Edition Handbook "Battery Number System". This Battery is cross-referenced as: AWCI S27, Energizer 376/377, Energizer 377/376, Energizer MD376, Energizer MD377, UCAR 376/377, UCAR 377/376, UCAR MD376, UCAR MD377, Eveready 376/377, Eveready 377/376, Eveready MD376, Eveready MD377, Citizen 280-72, Gold Peak GP76, Sylva-cell GP76, Maxell SR626W, Maxell SR626SW, Panasonic SP376, Panasonic SR626W, Panasonic SR626SW, National SP376, National SR626W, National SR626SW, Rayovac 376, Rayovac 377, Renata 376, Renata 377, Renata 43, Seiko SR/TR626W, Seiko SR/TR626SW, Sony 376, Sony 377, Energytec 376, Energytec 377, Toshiba SR626W, Toshiba SR626SW