The G-2000-1JF is a beauty… stainless steel case, screw down case back, quite a wide and immensely comfortable resin band and more weight than one usually finds on a G. It’s not atomic, and it’s not solar-powered – more of a round version of the DW-5000 and earlier of the 5600 series (but with a better quality finish and a lot less plastic). I have to say that it’s far and away the most comfortable G I’ve ever worn, and it feels like it’s built to last a lifetime.
Oh, there’s a link to the specification here.