Seiko SXD395 woman's watch... what is the battery part#? Thanks!

I have a Seiko SXC395 woman's watch. (please see pic attached)

What is the battery part#?

I took it out and put it in my pocket. On my way to the stores to buy one, the battery must have fallen out, so now I have no idea what the part# is. (yes, I know that was very dumb of me) :(


Thanks!!! :)

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