I'm looking to buy my first G-SHOCK and I'm pretty set on a 5600. I don't need atomic living in Australia, as far as I'm aware it's useless? I think I want solar though. World clock seems like a good idea too, not that I'd probably need it (I don't believe the standard 5600's have it?).
I had a question about how long the batteries actually last before needing to be changed? Will it outlast the life of a standard battery significantly?