Earlier quoted context omitted.
Them being dumb watches is the appeal though. A good "dumb" watch will last decades. An Apple Watch is obsolete after, what, two years? I wear a battery-powered analog quartz dumb watch on my wrist and I love it. I change the battery every couple years and that's it. It tells perfectly accurate time (way more accurate than a mechanical watch costing orders of magnitude more) and will never be obsolete.
I think an obsolete apple watch will still be able to at least mirror the functionality of any 'dumb' watch.
Not true at all. The battery isn't replaceable, other parts are more likely to break, and it's not clear to me that the Apple Watch even has a high quality quartz crystal inside it for accurate time-keeping. It might simply be grabbing the time off the linked cell phone, which grabs the time off the cell network. Do Apple Watches work well independently of linked phones for months on end? Years? Because that'll be necessary if you want to keep using one decades down the line long after they're no longer supported by whatever phone replacements have come down the line next.