I just purchased a MR-G 7000 2nd hand, and the battery clearly had run down because it would not operate or long at first (but was not resetting). I put in direct sunlight in my office, and it's now up to medium, but perhaps too long because the watch got quite warm before I realized that maybe it was too much time in the sun. Two questions: how long does the battery take to fully charge (still at medium despite lots of indirect sunlight) and is there a chance I damaged the battery or any of the internals? Watch otherwise works fine, although it doesn't pick up the atomic signal we well as my other atomic solar G-Shocks. I've searched the forum but there doesn't seem to be a clear answer.
Many thanks for your comments.