There are reportedly solar smart watches. I do wish my dumb watch was a tad smarter in that it doesn't get automatic time updates, but that's not impossible even without a phone. I haven't found one that's waterproof, solar, wireless time, and the right price though.
It helps mine runs a bit fast so I'm early to things. If it ran slow I'd probably have replaced it years ago. As is, I'm going on 10 years with barely taking it off my wrist and never charging or replacing a battery, and I'm not the first owner.
Citizen has an Atomic Timekeeping Eco-Drive series of watches that have a 200 meter water resistance. If you like complications see the Promaster Skyhawk A-T.
Sadly I got my current watch for free and it still works. And I don't really get dressed up for stuff. So while yes they certainly do have a series of nice looking watches, I can't justify the purchase at the moment.
It helps mine runs a bit fast so I'm early to things. If it ran slow I'd probably have replaced it years ago. As is, I'm going on 10 years with barely taking it off my wrist and never charging or replacing a battery, and I'm not the first owner.