I found my ideal watch, and my wife bought it for me !
Citizen "Ecozilla" in Titanium.
its big (18mm thick, front glass is 6mm thick) but its light, and doesn't feel anywhere near as big as it actually is.
easy to read with the big white and orange hands on a black dial, big hour markers and excellent Lume (i charge it with a flashlight before bed, and it's still easy to read in the morning)
300m waterproof (it's a proper dive watch after all, rated for saturation diving - not that I need that)
Its also pretty accurate (reliably +3 seconds a month, the whole time I have had it) and I don't have to worry about winding it or changing battery as its an EcoDrive movement, powered by the sun (I know I will have to have the battery replaced eventually, but not for 10yrs+)