Murata 377 SR626SW Silver Oxide Watch BatteryThe Murata 377/SR626SW is a silver oxide watch battery that is perfect for either replacing old batteries or changing the chemistry of the coin cells that you're currently using. With a silver oxide chemistry, coin cells have a lower self-discharge and stable output voltage, which suits powering low draining, continuous use devices. Ideal applications for a Murata 377 sized battery include watches, calculators, heart-rate monitors, glucometers, small electronic toys, and keyless remote entry systems for cars and homes. These batteries are a niche-size and aren't one-size-fits-all, so make sure that your device is compatible. A Murata SR626SW / 377 Battery replaces: Duracell 377, Duracell D377, Energizer 377, Maxell SR626SW, Panasonic SP377, Renata 377, Murata SR626SW, Timex BA, Toshiba SR626SW, Varta V377Packaging may vary - particularly on larger orders.