The case and strap design share asymmetry

View the Seiko Brightz World Time (SAGZ007) photo gallery.The Seiko Brightz World Time watch is a great combination of technology and class. It has all the style of the Brightz line of timepieces, and all the convenience of atomic solar technology (which means you never have to get the battery changed, and you never have to set it). Those on the right are large, grooved, and easy to press. The ones on the left are circular, DLC-coated, and deeply inset into shrouds. Seems that the start/stop and light buttons on the right are intended to be used underwater, but the mode/set buttons are not. If so, a thoughtful touch.(Casio also mirrored the buttons on the left -- those small polished circles of metal are decorative.) You can also see that the case is lighter in back, with matching dark grey screws. Nice attention to details.The caseback itself is DLC-coated stainless with a robotic frog graphic that shows an unexpected amount of humor for a multinational corporation. The steel has a beautiful glossy luster, and is flawless in finish; a very good use of DLC, in my opinion. The case and strap design share asymmetry: the case shape is mirrored in the tapering strap all the way down to the one-sided taper at the very end.If you're a frequent traveler, there's plenty more to like about the Seiko Brightz World Time since it can easily be set to one of 24 time zones, and it will calibrate with atomic clocks in the US, Japan, and in Europe (details below).The first thing you will notice about the Seiko Brightz World Time is its weight, or rather, the lack there of. The World Time is definitely one of the lightest watches I own, which initially makes it feel cheap, though I assure you it is not. The World Time is so light because the entire case and bracelet are made of polished titanium, which means it is as strong as it light.