They all need power from somewhere...
... regular manual winding, automatic winding, button cell, solar etc. Yes, it's a faff to have to plug something in and wait a while, but so long as that can happen when I sleep then it's not much inconvenience.
The aren't any truly fit'n'forget systems for powering any type of watch, but, in the absence of wrist-mounted atomic batteries, solar comes close. My own watch is a Citizen Eco-Drive Chronograph - the whole face is a solar EV collector. There's a small rechargeable cell inside to cope with darkness, but in 12 years of use it hasn't needed any attention.
Back in the 80's I used to have a Seiko UC-3000 in chrome, which often needed a hefty powercell replacing that was probably the most high-maintenance watch I ever owned, (there was another in the keyboard/dock, which used a wireless induction loop to transmit stuff to the watch). I've still got a Seiko 5 somewhere that is an automatic winder, but not very accurate.
Then again, I've a friend who swears by the Casio F-91W, which can still be bought even after all these years.
There's an interesting collection of older digital watches at http://mysbfiles.stonybrook.edu/~delton/Articles/nerd_watches.htm. No penguins or detached limbs in sight...