Waterproofness in Age of a watch

I was wondering how long a watch stays waterproof. I'm looking for an 114270 and were like that I need the ones from at least 2007-2010 to have a good solid watch for a long time. Am i wrong ? What about you, Vintage Watch Nerds ?

I really wanna use my watch daily for everything except diving. That's not a daily thing haha.

Tell me your thoughts:)

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Funny story, most brands do not guarantee/warranty WR.

Anything vintage should absolutely be serviced & then tested for WR before even thinking about subjecting it to water. 

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What @UnholiestJedi said. Anything more than 10 years, should proceed with caution. Thoughin that modern case, I would feel better than many others. Your local AD may be able to run a test, worst case local watchmaker. 

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Two things. First, there is no such thing as a waterproof watch. Back in the day the industry referred to them as waterproof, but regulators made them change that to water resistant unless a guarantee could be provided that no water would ever penetrate the case. 

As for how long a watch can stay water resistant, that depends on the seals and gaskets that protect the case. Ideally, the gaskets should be  replaced every few years to ensure maximum water tightness. Beyond that if the watch does not suffer any damage it should be good to go.

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There is always a risk with older watches so how well you trust it is a risk / reward decision everyone personally has to take.  
 

Quality of steel in more modern watches is greatly improved over vintage.   So lder watches can have pitting under the case which impacts water resistance.  
 

Definitely getting in touch with a local watchmaker prior to   purchasing is a great idea.  I know mine will review high res picutes of the watch and advise me on condition before I purchase. 
 

To geek out a little on pitting:

https://www.snglrtywatch.com/all/how-watches-work/corrosion-pitting-the-achilles-heel-of-stainless-steel-watches/

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UnholiestJedi

Funny story, most brands do not guarantee/warranty WR.

Anything vintage should absolutely be serviced & then tested for WR before even thinking about subjecting it to water. 

That's true. I never met anyone who managed to redeem a warranty for a water damaged watch.