Jaquet Droz

Jaquet Droz’s flagship Grande Seconde collection contains the most poetic of complications, the moon phase, as a tribute to the role of astral phenomena in the origins of watchmaking. The clean aesthetic of the Grande Seconde collection, with its figure-8 dial configuration, is rendered here in black Grand Feu enamel. The lower subsidiary dial is dominated by a realistic moon, engraved out of 22K gold and mounted on a black onyx disk that rotates. It is an astronomical moonphase, which means it requires correction only once every 122 years, and is driven by an in-house automatic calibre with a silicon balance spring. A red-tipped hand indicates the date on an 18K gold ring surrounding the moon phase, while another hand indicates seconds. The moon phase can be set using the corrector at 8 o’clock. The 43 mm case is 18k red gold.

Mechanical automatic Jaquet Droz 2660QL3 Calibre, 28,800 vib/h (4 Hz), 30 jewels, 18k gold rotor, silicon balance spring and pallet horns, double barrel, flat bridges, 68-hour power reserve.

Hours, minutes, seconds, date, moon phases

18k red gold, 43 mm, thickness 13.23 mm. Individual serial number engraved on the caseback. Water-resistant to 3 bar (30 m/100 ft)

Double-level black Grand Feu enamel with 18k red gold hands, hours, minutes, seconds, star applique and date ring. Date with red varnished top. Black onyx moon disk, moon applique in 22k red gold

Rolled-edge hand-made black alligator with rolled edges and 18K red gold buckle