Erm, holes.

[FrontierGibberish]

Hunting for something on the bay I came across this, which appears to have hole through the case-back. Messaged the seller (who hadn't mentioned it) saying "That looks like a hole". "It's a hole", he replied. Ebay comms at their best.
So I'm sat here asking myself why someone would drill a hole through the back of a watch and can only conclude that there might be some reason for it. So, and here comes the dumbo question, is this just a watch with a bizarre hole in it or is there some reason I'm unaware of, perhaps something once attached? It's an old Tissot btw.
[IMG]Screenshot 2020-09-08 at 21.44.51 by Oscar India, on Flickr[/IMG]

[Bondurant]

I searched Google and it appears that it may be something to do with regulating the watch. No idea if that's true though.

[FrontierGibberish]

I searched Google and it appears that it may be something to do with regulating the watch. No idea if that's true though.

Interesting. It certainly looks like it was done at manufacture (assuming it's the original case-back, but given the shape of the watch I assume it is), which is what puzzled me. Not been done in someone's garage with a Dewalt!

[gcleminson]

Found this linked on another forum:

https://watchguy.co.uk/service-and-r...-calibre-2770/

[Onelasttime]

I searched Google and it appears that it may be something to do with regulating the watch.

Genius. Like trepanning?

[FrontierGibberish]

Found this linked on another forum:

https://watchguy.co.uk/service-and-r...-calibre-2770/

Cheers. That's a good read.

[Sammers23]

That's a helium pressure release valve by the looks of it!

[JasonM]

Probably access to a trimmer screw.

[Wallasey Runner]

It'll be for lubricating the movement without taking the back off, get your 3 in 1 oil or WD40 with the red straw and keep those cogs turning

[FrontierGibberish]

That's a helium pressure release valve by the looks of it!

Heh. "ALL MY HELIUM'S COME OUT!"

- - - Updated - - -

It'll be for lubricating the movement without taking the back off, get your 3 in 1 oil or WD40 with the red straw and keep those cogs turning

Will axle grease work? I've got lots.

[M1011]

For those wondering who didn't read the link, it's for regulating the watch without un-casing the movement. Movement loads via the front crystal on this model.

Bit bizarre, but that's the story.

[RustyBin5]

Handy for letting the water out

[craggie]

Handy for letting the water out

Or the evil spirits!

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[FrontierGibberish]

For those wondering who didn't read the link, it's for regulating the watch without un-casing the movement. Movement loads via the front crystal on this model.

Bit bizarre, but that's the story.

Thank you. That’s cleared that up!


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