I use a Ulysse Nardin Michelangelo UTC - stainless steel, blue face, SS bracelet - when travelling multiple timezones. In fact, it's on my wrist right now. One push either way adjusts the main hands by an hour, with my home time showing in the small window. It's relatively complex for a mechanical watch. I would think implementing it in quartz/LCD wouldn't be too difficult.
Like this, only in the no-longer-available cobalt blue face:
http://www.ulysse-nardin.com/e/colle...&ID_Cat=100004