How durable are aged-tritium hour markers?

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Hey guys,

I'm still waiting for my first Omega watch to arrive in a few weeks but I'm wondering how durable are the aged-tritium hour markers? In other words, does wearing the watch daily (excluding sports and water-related issues) possibly could "crumble" the old/original lumes?

Thanks!
 
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Shouldn't be a problem. Obviously the relative state of the material is important, but if it appears to be solid, then everyday wear is unlikely to disturb it.