I bought the Seiko orange SNM037 watch specifically for diving. Its big and easy to read, easy to handle even over a wetsuit. I think it is great.
About automatics - they turn off if you don't use them. As as I use this watch specifically for diving I view this as an advantage.
Dive watches has gasketing or o-rings that have a finite life, and if you have an electric watch they have (or should) be replace every time the battery is replaced.
My electric dive watch was good for about three years until I had to have the battery and gaskets replaced, This was not cheap and must be repeated every few years.
On the other hand, my mechanical Seiko will last a lot longer because it will not have to be opened for battery replacment - it will last until the o-rings give out (I'm told about 10 years based on about 100 or so dives a year, and NOT using it for a daily watch).
Treat a dive watch as you do your dive gear or dive camera - rinse it with fresh tap water after you dive, and the gaskets will last longer.