Jaquet Droz Grande Seconde Skelet-One

The iconic Grande Seconde collection welcomes this year a new timepiece, which for the first time; it proposes a sapphire dial integrated within a skeleton composition. The Grande Seconde Skelet-One marks a true stylistic turning point in the brand’s history, as part of its prestigious 280th anniversary celebrations.

Like all models from the Grande Seconde line, the new timepiece also preserves the signature figure “8” shaped dial layout. Jaquet Droz maintained the uncluttered character of the dial that is distinguished by the legendary hours and minutes counter with Roman numerals at 12 o’clock, intertwined with the large seconds counter with Arabic numerals at 6 o’clock. The composition stays true in all aspects to the original inspiration of the Grande Seconde, playing with decorated surfaces as much as empty spaces.

Similarly this new interpretation in total transparency – a first for Jaquet Droz – accords ample breathing space to the time indications. Hours, minutes and seconds stand out in a new transparent aesthetic bathed in light. Jaquet Droz has left only the bridges showing, which structure the piece’s movement.

The sapphire dial, on which the large seconds hand turns, perfectly complements the skeleton movement, constructed in successive layers, themselves visible from the side. The plate is now entirely open-worked. The casing-up circle has been eliminated, allowing for a more open composition. At 12 o’clock, the hours and minutes turn around a sapphire hour ring, set on a base of gold.

The ensemble is held together by five indexed screws, oriented in a chosen direction. Used for the first time by Jaquet Droz, this procedure was derived from an existing armory system and adapted by the brand’s technical teams. The oscillating weight in gold has also been open-worked to let light diffuse freely into the heart of the movement.

The Grande Seconde Skelet-One, equipped with a silicon double barrel, balance spring and pallet lugs, features a hand-assembled Caliber 2663 SQ. It is the first to reveal the mechanical choreography beating at the heart of the Grande Seconde.

The Grande Seconde Skelet-One, with a diameter of 41 mm, comes in three interpretations: red gold, white gold and ceramic.

Technical details
Grande Seconde Collection

Movement
Jaquet Droz 2663 SQ, self-winding skeleton mechanical movement, silicon balance spring and pallet horns, double barrel, 18-karat red or white gold oscillating weight
Individual number engraved on the oscillating weight
Off-centered hours and minutes, large off-centered second
30 jewels
Power reserve: 68 hours
Frequency: 28,800 v.p.h

Models
Grande Seconde Skelet-One Red Gold Sapphire (Reference J003523240)

18-karat red gold case
Diameter 41 mm
Height 12.30 mm
Water resistance: To 3 bar (30 meters)
Sapphire dial
Hour circle in 18-karat white gold
Dial fixing screws in 18-karat red gold
18-karat red gold hands
Rolled-edge hand-made black alligator strap
18-karat red gold ardillon buckle

Grande Seconde Skelet-One White Gold Sapphire (Reference J003524240)

18-karat white gold case
Diameter 41 mm
Height 12.30 mm
Water resistance: 3 bar (30 meters)
Sapphire dial
Hour circle in 18-karat white gold
Dial fixing screws in blued steel
Blued steel hands
Rolled-edge hand-made black alligator strap
18-karat white gold ardillon buckle

Grande Seconde Squelet-One Ceramic (Reference J003525540)

Black ceramic case
Diameter 41.5 mm
Height 12.48 mm
Water resistance: 3 bar (30 meters)
Sapphire dial
Black ceramic hour circle
Indexes and dial fixing screws in red gold
18-karat red gold hands
Rolled-edge hand-made black fabric strap
Stainless steel and ceramic folding clasp with black PVD treatment

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