Brand: Maxell. MPN: SR916SW. Maxell 373 SR916SW 1 Battery. Please keep these and all shiny-silver child-attracting batteries stored safely away from children, if swallowed they are dangerous 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 Mercury Free 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 may prove undependable. 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 Dealers have my permission to use this copyright research at no charge if you acknowledge "from Bob" as the source. You will have access to my ongoing updated material corrections and updates with new information. Fits and replaces: Alba V318 Alba V339 Alba V33F Alba V33G Armitron 20/34547 Armitron 95.