Small watch battery

>>1081634
take a straight on photo of the hole and under strong lighting

put a ruler next to it

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here you go

>>1081641
this fucking retard you have to block the inside do you so nobody can see shit

The battery doesn't fill the whole cavity, doofus.

yeaah fuck yall crazy nevermind lol

>>1081655
>you're crazy because you need a clear piture of my shitty $8 watch to tell me what battery I need, with only the hole as a guide.

Whatever you say, cucko.

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>>1081634
There are hundreds of watch batteries so you'll need a model number or something to look it up. From the first picture you posted take that white plastic piece out, then update us with another picture. Watch batteries usually slip underneath a piece of metal and there appears to be a piece of metal on the top portion towards where the robots head is so it might go there. Take better pictures and remove the plastic piece so we can see what's underneath. In this picture you can see how the watch battery goes into the black hole and the piece of metal rests on top of it

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>>1081666
But like I said there's a ton of different ones so you probably need a model number or something to look it up

>>1081634
I'm a jeweler (no seriously), I also do watch and clock repair. If I were to put money on it it's battery #377. It's the most common non-lithium watch battery. I've changed maybe 20 watch batteries a day for 8 years

It looks like that is it. Alternatively you can bring it to a jeweler and pay 4-10 dollars for a watch battery.

Take it to a watch shop and ask them? Then they an even SELL you what you need while youre there
It looks like you'd need to stack a few if its the flat one

>>1081705
Not OP but a related question, do most jewelers change out crystals for relatively cheap?

>>1081705
Seconding this. Looks like a cheapo mechanism that take 377/376, also known as SR626. Buy a Maxell or Energizer battery because cheap ones are a waste of time.

The battery will likely sit in a cavity under where the circle shaped piece of the plastic retainer is covering, positive (flat) side up.

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>>1081838
If you already have the crystal yes. Maybe 20 bucks at most to replace it for you

Where I work if I had to cut one it would be 30-120 depending on size and if you want sapphire coated or not.

At work right now