MAXELL 361 SR721W - 1 Battery Official Watch Replacement 361/362

Product Description

362 and 361 are completely interchangeable with identical functionality

Superior Maxell Micro Silver Oxide SR721W/SR721SW One Battery 361/362

Do not use (inherently low performing) alkaline batteries in place of silver oxide in any timepiece.

Made in Japan
Genuine Maxell Hologram Anti-Counterfeit Packaging (other package is not genuine)
Dimensions 7.9mm Diameter x 2.1mm Height
1.55 volts 25 mAh
Mercury Free
The 361 SR721W is completey interchangeable with the 362 SR721SW
This is a primary non rechargeable disposable battery

The 361/362 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 S23, Energizer 362/361, Energizer 361/362, Energizer MD362, Energizer MD361, UCAR 362/361, UCAR 361/362, UCAR MD362, UCAR MD361, Eveready 362/361, Eveready 361/362, Eveready MD362, Eveready MD361, Citizen 280-29, Duracell D362/D361, Duracell D361/D362, Duracell D362, Duracell D361, Duracell 10L180, Mallory D362/D361, Mallory D361/D362, Mallory D362, Mallory D361, Mallory 10L180, Gold Peak GP62, Sylva-Cell GP62, Maxell SR721SW, Maxell SR71W, Maxell SR720SW, Panasonic SP362, Panasonic SR721SW, Panasonic SR721W, National SP362, National SR721SW, National SR721W, Rayovac 362, Rayovac RW310, Renata 362, Renata 19, Seiko SR/TR721SW, Seiko SR/TR721W, Seiko SR/TR720SW, Seiko SR/TR720W, Seiko SB-DK, Seiko SB-AK, Sony SR721SW, Sony SR721W, Toshiba SR721SW, Toshiba SR721W, Toshiba SR720SW, Toshiba SR720W, Toshiba W1U, Toshiba D1U, Varta V362, Varta V361, Varta 532