[dalkvist]

I have a solarwatch that I can't use in the winter time, after moving up north, not enough sun light to keep it charged =p

[JohnBooty]

You can charge them under a lamp, too! Regular indoor lighting charges them too, but slowly

My Citizen and Seiko solar watches are good for months after getting a full charge... they say ~6 months and that seems about right

[ginko]

I have a citizen eco drive solar watch i got 16 years ago. Never needed to change or recharge the battery.

And I live in Norway just below the arctic circle so artificial light must be enough to charge it.

[rwmj]

I'm surprised, my solar G-Shock [GAW-100B-1AER] never dips below "H" charge even on the darkest winter days.