Deadbeat seconds is an extremely rare complication first introduced in the Age of Enlightenment, the very era when Pierre Jaquet-Droz was travelling the length and breadth of Europe to present his timepieces to royal courts across the continent. This technique means that the seconds hand no longer moves in a smooth sweep, but instead in one-second jumps, thus enabling extremely precise measurements. This horological miniature marvel is now revived by Jaquet Droz, which reinvents its Grande Seconde for this purpose.

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The historically off-centered seconds hand now takes its place at the centre of the dial, while the space traditionally reserved for it is occupied by the retrograde date display. A brand-new calibre has been created to power this association of deadbeat seconds, date and hour/minute module. This ingenious mechanism makes ample use of innovative technologies, such as a silicon balance-spring or a cam with 10 teeth instead of 30, to ensure that the deadbeat seconds jump is a visual show in which prodigious technical sophistication is matched by aesthetic refinement. 88-piece limited edition.

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Mechanical automatic Jaquet Droz 2695SMR calibre, 34 jewels, 21,600 vib/h, 18K red gold oscillating weight, 40-hour power reserve

Hours, minutes, deadbeat seconds, date

18K red gold, 43 mm Water-resistant to 30 metres (3 bar / 100 ft)

Ivory Grand Feu enamel Offset hours and minutes
Large central deadbeat seconds hand Pointer-type retrograde date at 6 o’clock

Alligator leather, 18K red gold buckle

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