Maxell 373 SR916SW 100 Batteries
Dimensions: 9.5 mm Diameter x 1.6mm Height
Do not use (inherently low performing) alkaline batteries in place of silver oxide in any timepiece: alkaline batteries have declining power output.
Made in Japan
373 and 3 7 2 SR 9 1 6 W are completely interchangeable
Genuine Maxell Hologram Anti-Counterfeit Packaging (other package is not genuine)
1.55 volts 26.5mAh
This is a primary non rechargeable disposable battery
The 373 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.
This is from the American Watchmakers-Clockmakers Institute 2008 Edition Handbook "Battery Number System". This Battery is cross-referenced as: AWCI S40, Energizer 373, UCAR 373, Eveready 373, Citizen 280-45, Duracell D373, Mallory D373, Gold Peak GP73, Sylva-cell GP73, Maxell SR916SW, Panasonic SP373, National SR916SW, Rayovac 373, Rayovac RW317, Renata 373, Renata 41, Seiko SR/TR916SW, Sony SR916SW, Sony 373, Energytec SR916SW, Energytec 373, Toshiba SR916SW, Varta V373, Varta 539
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Fits and replaces: