Do not use (inherently low performing) "LR" alkaline batteries in place of silver oxide in any timepiece: alkaline has declining power output.
This is from the American Watchmakers-Clockmakers Institute 2008 Edition Handbook "Battery Number System". This Battery is cross-referenced as: AWCI S04, AWCI S07, Energizer 301/386, Energizer 386/301, Energizer 301, Energizer 386, Eveready 301/386, Eveready 386/301, Eveready 301, Eveready 386, UCAR 301/386, UCAR 386/301, UCAR 301, UCAR 386, (UCAR is an abbreviation for Union Carbide, the previous name of Energizer, Eveready) Citizen 280-01, Citizen 280-16, Duracell D301, Duracell D386, Duracell WS11, Mallory 301, Mallory 386, Gold Peak GP01, Maxell SR43SW, Maxell SR43W, Maxell GP01, Panasonic SP301, Panasonic SP386, Panasonic SR43SW, Panasonic SR43W, National SP401, National SR43SW, National SR43W, Rayovac 301, Rayovac RW34, Rayovac WS-11, Renata 301, Renata 386, Renata 1, Renata RW14, Seiko SR43SW, Seiko SR43W, Seiko SB-AB, Seiko SB-D8, Seizaiken SR43SW, Seizaiken SR43W, Seizaiken SB-AB, Seizaiken SB-D8, Sony SR43SW, Sony SR43W, Energytec SR43SW, Energytec SR43W, Toshiba SR43SW, Toshiba SR43W, Toshiba WGS12, Varta V301, Varta V386, Varta 528
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