Twelve tiny windows around the edge of a dial tell you the month, and almost nobody notices until you point it out. Built for people who wake up in one time zone and go to sleep in another, this is the most complicated watch Rolex makes and it wears like a quiet flex. Collectors who love a machine that works harder than it looks tend to fall for this one fast.

Presents itself in mint condition with little to no signs of wear. Crowned by an 18k white gold fluted Ring Command bezel, every groove catches light like a row of tiny mirrors and separates itself instantly from the steel below. Set against a bright black dial, the applied white gold hour markers glow like piano keys under a spotlight. Framed by mirror polished flanks and brushed lug tops, the Oystersteel case shifts between gloss and matte every time your wrist turns.

Functions include hours, minutes, seconds, date, month, second time zone, annual calendar. Powering all of it is the automatic Calibre 9002, good for roughly 72 hours of running when fully wound, and sealed to 100 meters of water resistance. Setting runs through the Ring Command system, where the rotatable bezel talks directly to the screw down crown on the right side of the case and tells it which function to adjust. Rotating the bezel picks the mode, turning the crown makes the change, and bringing the bezel back to neutral locks everything in place.

Comes as a full set, double boxed with warranty card, green leather card wallet, warranty booklet, Sky-Dweller booklet, green Superlative Chronometer seal, white hang tag.

Only Rolex puts a solid gold bezel on a steel watch and then hides an annual calendar underneath it, which is why this reference keeps getting harder to find at the counter. Perfect for the collector who already owns the obvious pieces and now wants the one that rewards a second look. Some watches shout, and this one just waits for someone who knows.