This will be my first winter with G-Shocks. Most of my Gs and Pathfinders are solar powered. In the winter, the watch I wear is under 1, 2, or 3 layers of sleeve. It almost never gets any sun while on the wrist. I'm in the office all day desk-diving, but it's dark when I leave to go home.
I suppose this means I'll have to rotate more often, leaving my watches in the window, where there are enough hours of sun to charge them.
I do love that auto-EL!!!