Ulysse Nardin welcomes a new model into its Marine Chronometer collection. Produced in a limited edition of 18 white gold pieces, the Grand Deck Marine Tourbillon model boasts a nautical-inspired design and incorporates cutting edge technology and innovative mechanisms.
On the dial, hand-crafted wood marquetry evokes a ship’s deck, while the time display is original and creative: a boom pulled by super-strong nanowires indicates the minutes, while the hours are displayed on two concentric disks. The patented device, which is regulated by a second barrel, also incorporates a majestic tourbillon.
In the innovative Grand Deck Marine Tourbillon model, the retrograde minutes display takes the form of a boom. The technology is visually fascinating, and as complex as it is accomplished. Linked to a 60-second flying tourbillon, this patented system is drawn by a super-strong hi-tech fiber that is thinner than a human hair. Impressive all-round, the timepiece showcases breakthrough technology in the unmistakable nautical-themed design of the Marine Chronometer family, of which it displays the legendary traits.
In a proud nod to its maritime roots, the Grand Deck Marine Tourbillon model incorporates the elements of a ship’s deck to display the time in a creative and original manner. The minutes hand is replaced by a boom - the horizontal spar used to angle the head sail. Working like the halyard cord that is used to hoist the sails of a ship, a wire pulls the boom across a graduated arc. The boom jumps back once an hour, its speed regulated by a purpose-designed retrograde mechanism. The mesmerizing leap takes 3 to 4 seconds and can be viewed through the case back.
The boom is pulled by a nanowire that measures a mere 0.0357 mm in diameter and is capable of withstanding traction of 1.41 kg without stretching. The nanowire is made of polyethylene Dyneema® fiber, a material that is used in ship’s rigging and is many times stronger than steel. In a first for watchmaking, the transmission system loops the wires through a rigging screw: two strands are visible, and a third strand fastens the turnbuckle. The patented system, which is visible on the dial, is exclusive to Ulysse Nardin. Working like the winches that hoist the sails on deck, four ‘pulleys’ use a drive gear, a spiral tensioning spring and two lock pins. The jumping hour is driven by two large concentric disks that turn in real time, and is displayed through a double aperture. A corrector positioned at 2 o’clock can be used to set the time quickly.
The double-barrel design (one for the movement and another for the display) prevents the complication from interfering with the workings of the watch. To the rear of the movement, the leading and unloading of the balance spring can be viewed through the skeletonized barrels, a feature that is both functional and fascinating. When the watch is wound, the spring winds up into the center of the barrel. Conversely, when the spring is spent it unwinds out towards the edge of the barrel.
This compact example of mechanical ingenuity is housed in a white-gold case measuring 44 mm in diameter and water-resistant to 100 meters. The dial of the Grand Deck Marine Tourbillon conjures a ship’s aesthetic and technical finesse. The fluted bezel is complimented by a screw-down crown with blue rubber molding. Hand-crafted marquetry evokes the sun-soaked teak of a ship's bridge. The blued aluminum boom sweeps across a translucent arc of blue spinel that extends from 3 o’clock to 9 o’clock. The boom is drawn by a wire connected to four pulleys secured with blued star-shaped screws, which are echoed by the tourbillon decorated with the Ulysse Nardin anchor. In a final flourish, border detailing and ornamental wires that adorn the top of the dial offer further subtle references to nautical design. In the signature of the Marine Chronometer collection, the Ulysse Nardin logo, placed between two floating maritime symbols that correspond to the letters U and N, echoes the design of the ship’s chronometers that were historically produced by the Manufacture.
This timepiece is available in an exclusive limited edition of 18 pieces on an alligator strap with a white gold folding buckle.
Ref. 6300-300/GD: 18 ct white gold
Limited Edition: 18 pieces
Tourbillon with an exclusive boom display
Power-Reserve: Approximately 48 hours
Jumping hour in a double aperture
Minutes on a graduated arc
60 seconds flying tourbillon
Forward and backward hour corrector
18 ct white gold, fluted bezel
Crown: Screw-down security crown covered with rubber
Diameter: 44 mm
Water-Resistance: 100 m
Crystal: Anti-reflective sapphire crystal
Case-Back: Sapphire crystal
Hand-crafted wood marquetry
Minutes arc of blue spinel in the centre of the dial
Blued aluminum boom indicates minutes
Leather with a folding buckle
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