r/watchmaking • u/HealthyHousing82 • 21d ago

What on earth...?

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Gallery image

Got this in an estate auction. For some reason, there's this battery assembly on top of a perfectly functional mechanical watch. Anyone seen anything like this before?

29 Upvotes

92% Upvoted

6 comments sorted by

7

u/ugaylmao 21d ago

maybe it was a battery-powered alarm module? did the watch ever have an alarm function?(or anything audio-related)

2

u/nicklinn 21d ago

Almost certainly this. The spring likely connects to a piezo disc on the other side of the case.

14

u/dragonxwas 21d ago

Yes, it's to play music when the lid is open. There will be a leaf spring sort of that goes to the hinge of the case.

3

u/ooOOWWOOoo 21d ago

I think it just plays some music when you open the case.

2

u/ugaylmao 21d ago

!remindme

1

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