For the very well heeled jetsetter, Vacheron Constantin's Patrimony Traditionnelle World Time (say that three times fast) is the ultimate travel watch. The watch can not only tell the time in multiple time zones across the globe, but can simultaneously display all 37 of them, even the countries who have a half-hour or quarter-hour time difference. Link
Vacheron Constantin releases a blue version of their Traditionelle world time
Breathtaking in blue.