Need a watch battery number S8821577

Click on the link and ID your watch. The numbers are not identified. If you bought it on eBay, Amazon or anywhere other than a dealer shop, it is a Chinese clone. They make up model numbers for effect and to avoid litigation.

https://www.google.com/search?q=Caravelle+By+Bulova+c875182&sca_esv=584988440&rlz=1C1QJDB_enCA643CA644&tbm=isch&sxsrf=AM9HkKkYbdvYgLAR8s9CmNaospXMuyRW9A:1700802670780&source=lnms&sa=X&ved=2ahUKEwjpjJnY79uCAxUGhYkEHbyDDL4Q_AUoAnoECAQQBA&biw=1920&bih=931&dpr=1

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Best Tip on Watch Batteries for a beautiful Bulova Accutron.

https://www.fixya.com/support/r27181038-changing_watch_batteries

https://www.google.com/search?q=Caravelle+45a108+watch+battery

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take it to MACYs and say , can you pop in a new battery.
or any watch repair shop, can.
this is very old cheap watch and manuals are not easy to find.

Caravelle watches to begin are garbage . Get a Timex if you need a cheap watch it will last you longer.

If you go to

http://www.bulova.com/brands/caravelle/product.aspx?origin=sku&sku=43C11&brand=caravelle

(paste this link into your search engine box) and you will arrive at the Boluva web site. There you will see a box lebelled "operating instructions'' which you can download.

mcdevito75 here, You will need a screwdriver to use in the slot for the battery cover or a coin, once you have the tool for the slot turn the cover just a bit and lift it off to get to the battery.

Serial numbers are generally on the back of the watch.

You may be able to find two or three numbers on the watch.

A case number, a movement number and a serial number.Alternatively you might find a style number (which in your case is 26B44) and a serial number.

Hey there !
if the back has a notch on the top left of the cover (right underneath to what would be 10'oclock position), it is a 'Pop-up'. But if the watch has 6-8 notches on the back plate of the watch its a screw-off.
Its really hard to say what battery size it would take due to the fact that each watch has a different operating mechanism and its hard to determine that from the model number.

You need to push the pins out in the direction of the arrows. Then take out one link from each side. Put the pins back in the same way they came out, with the slot pointing the same direction as before.