Land in Tokyo, thumb the hour hand ahead, and you are on local time before the seatbelt sign switches off. Built for the collector who treats the whole globe like a backyard, this platinum traveler turns hopping time zones into a magic trick. Old in soul and young at heart, it belongs on a wrist that always has somewhere to be.

Presents itself in mint condition with little to no signs of wear. Adorned with a silvery wave guilloche, the dial ripples like sun bouncing across open water and shifts with every turn of your wrist. Forged from solid platinum, the case carries a heavy, liquid shine that only the rarest metal can give. Revealed through a sapphire caseback, a silver anchor set against cobalt blue enamel rides the rotor like a chip of stained glass in motion.

Functions include hours, minutes, small seconds, date, day, month, year, second time zone, and day and night indication. A self-winding Caliber UN-32 chronometer beats inside, good for about 48 hours of power reserve and rated to 30 meters of water resistance. Pull the crown on the right side of the case and turn the hands, and the whole calendar glides right along with them, forward or backward, straight to today with no need for the old set-it-to-yesterday routine. Press the plus pusher to jump your local hour ahead one step at a time, or the minus pusher to send it back, and the date follows in either direction, so an overshoot never means a trip to the watchmaker, a clever perk for anyone crossing the International Date Line.

Comes as a full set, boxed with an international guarantee card, a certificate of limited edition, and original instruction booklets.

One of just 500 cast in platinum, this piece springs from the mind of Dr. Ludwig Oechslin, the wizard whose ideas made rivals rethink the calendar. Look closely, and the sun sits at the top of the 24-hour ring, right where it hangs at high noon, while the moon waits below for midnight, a wink of genius long retired from production. For the collector who owns the Pateks and the Langes but wants the clever one nobody at the table can explain, few grails feel this quietly brilliant.