Maxell 319 SR527SW 5 Batteries
Dimensions: 5.8mm Diameter x 2.7mm Height
Click here for a great price on a box of 100
Do not use (inherently low performing) "LR" alkaline batteries in place of silver oxide in a timepiece: alkaline batteries have declining power output such as the LR 3 7 7, see below.
The 319 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 such as the LR 3 7 7 (they are not a wise choice for timepieces) for any device requiring a steady constant voltage. A watch with declining voltage may not be dependable.
Made in Japan Genuine Maxell Hologram Anti-Counterfeit Packaging ( other package is fake) Mercury Free This is a primary non-rechargeable disposable battery
Please keep these and all shiny child-attracting small batteries out of the reach of children; they are dangerous if swallowed. All batteries (you will benefit by learning properly how to handle your batteries) are dangerous and must be disposed of according to your local Solid Waste Department laws. We are here a short time, let's leave a beautiful future. Vita pulchra est!
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.
This is from the American Watchmakers-Clockmakers Institute 2008 Edition Handbook "Battery Number System". This Battery is cross-referenced as: AWCI S54, Energizer 319, Eveready 319, UCAR 319, Duracell D319, Mallory 319, Maxell SR527SW, Panasonic SP319, Panasonic SR527SW, National SR527SW, National SP319, Rayovac 319, Rayovac RW328, Renata 319, Seiko SR/TR527SW, Seiko SB-AE, Seiko SB-DE, Sony SR527SW, Sony 319, Energytec SR527SW, Energytec 319, Toshiba SR527SW, Varta V319
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