[Mainan_Tagonist]

I wonder how many of these Casios and Apple watches will be in working order, and as functional as day one.

[crazygringo]

Museums don't operate objects that are 200 years old, so it doesn't really matter.

But also, it's not like a mechanical watch is going to work for 200 years without maintenance and repair either. Lubrication, springs, bearings... these all degrade over time.