How long will this battery work in a watch?

Not sure. Depends on the watch. They are so cheap I don't sweat it. My wife has collection of cheap "fashion" watches, so just buy various size batteries.

Can i just use the same size battery in my watch as this... I cant imagine habing 20 different battieries for watches

There are many different sizes of batteries. You must use the same # associated with the battery currently in your watch. If this battery is the same #, great. If not, don't use it.

Are these the same as LR920 1.5 volt?

Pretty sure they are, in fact these (SR920) are silver oxide instead of alkaline and should last longer. So yes, they will work and most likely last longer. 🙂👍

Hello, Please indicate expiration date of these batteries. Thanks.

i have not ordered or received sr920sw batteries. i received sr521sw with expiration date of 06-2013. my best guess i received these batteries app. 09-2103, about 3 months past the expiration date. i read a comment that indicated the batteries have no expiration date. my sr521sw's clearly has an exp. date of 06-2013.

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⏳ Power your moments with precision and reliability!

ECO CONSCIOUS CHOICE - Zero mercury and lead-free design aligns with your sustainable lifestyle.
RELIABLE POWER BOOST - Consistent 1.55V output ensures your devices never miss a beat.
PACK OF 5 CONVENIENCE - Five batteries per pack to keep your essentials powered longer without frequent reorders.
PRECISION ENGINEERED FOR TIME - Optimized for quartz watches, delivering ultra-stable voltage for flawless timekeeping.
TRUSTED JAPANESE CRAFTSMANSHIP - Maxell’s pioneering silver oxide technology guarantees premium quality and durability.

Maxell SR920SW is a high-quality silver oxide button cell battery, delivering a stable 1.55V output ideal for quartz watches and precision electronics. Packaged in sets of five, these batteries are crafted in Japan with eco-friendly materials, ensuring long-lasting performance and peace of mind for your essential devices.

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Brand	Maxell
Manufacturer	Maxell
Model	371/920
Model Name	SR920SW
Product Dimensions	15.24 x 1.27 x 7.62 cm; 9.07 g
Batteries	5 Product Specific batteries required.
Item model number	371/920
Compatible Devices	Watch
Voltage	1.55 Volts
Power Source	battery powered
Batteries Included	No
Batteries Required	No
Battery cell composition	Alkaline
Manufacturer	Maxell
Item Weight	9.07 g

Maxell SR920SW Watch Battery Button Cell 371- Pack of 5 Batteries

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