If you are in the US get a citizen eco-drive you like from the officialwatchdeals store on ebay, they have great deals on citizen eco-drive watches like on this pilot style one. there’s also an extra 30% off coupon at the moment for it and other models that brings the price down to $100.

Just don’t hide it in a drawer in the dark when not wearing it, leave it on a shelf in a well lit room where it can get some daylight and it’ll just work for decades.

There’s also the Casio solar mtp-s120 that’s around that price range and if you find the Casio Duro to be to big there’s a smaller (40mm) casio mtd1053 that has the same other specs as the Duro.