Case material: Steel; Charge: Automatic; Conditions: New Presentation condition : With dealer guarantee ; Model: Nautilus Price on request Gmtbroker Reference: 5980/1A-001 This is one of the rarest and most exclusive Patek Philippe Nautilus's ever made. It is the Chronograph Automatic Tiffany & Co. Black/Blue Edition. Very beautiful watch. Patek Philippe 5980/1A "Tiffany & Co." Nautilus Chronograph Stainless Steel on Bracelet, Blue/Black "Noir Trame" Dial with Signed "Tiffany & Co." on Dial, Automatic, Skeleton Back, 40.5mm, Extremely Rare Tiffany & Co. Boutique Edition. Movement is the automatic winding Patek Philippe Caliber CH 28-520 with 35 jewels and unique zirconia oxide ball bearings for the rotor to glide on. This chronograph caliber features column wheel construction, which is universally acknowledged to be the best engineered chronograph system ever devised (but expensive to build – hence its rarity), and is stamped with the Patek ‘PP’ quality hallmark (an even more stringent indication of quality than the Geneva Seal). The chronograph sub dial at 6 o’clock consolidates the minutes and hours totalizer by deploying two hands. This system of displaying elapsed time is ingenious because the wearer can discern the elapsed minutes and seconds at a glance, instead of looking at separate sub-dials like all other chronograph interfaces use. Also known as: Patek 5980/1A-001, 59801A001, 5980-1A-001, 5980/1A