Kronaby looks like a traditional watch but it has step counter and vibrates when someone is calling or sending text. And the battery lasts for 2 years.
I've had a Kronaby for a few years now. The first battery lasted maybe 14-15 months, next one barely one year. Nowadays, I switch battery every 8-9 months.
It's still much better than charging your watch every night/week/month. And I really like the minimal functionality it offers.
https://kronaby.com