Limited series

Les Grandes Heures scientifiques
Unique piece


Tourbillon automatic regulator,
officially chronometer-certified

Minutes indicator in centre
hours indicator on auxiliary disk at 6 o'clock and seconds indicated
by arrow fixed on tourbillon carriage.

    18 ct white gold 150 PD
    Hand-engraved and grand feu enamelled dial in white gold
    Blue genuine alligator strap
    One-of-a-kind model

Cal. L512 Manufacture Leroy

  • Diameter: 28.80 mm (12.8’’’)
  • Frequency: 28,800 vibrations
    per hour (4 Hz)
  • No. of jewels: 23
  • Power reserve: over 52 hours
  • Bridges decorated with Côtes de Genève,
    sunburst, hand-chamfered
  • Flying tourbillon with variable-inertia balance with four gold setting screws
    and double balance-spring, diamond escapement, non-lubricated StruTech blank (61 components for 0.8 grams).
  • 22 ct gold oscillating weight

Details of external parts

  • Case diameter: 41.00 mm
  • Total thickness of watch: 10.70 mm
  • Guaranteed water resistant
    to a depth of 50 metres (5 ATM)
  • Scratch-proof sapphire crystal, front and back
  • Case in non-rhodium-plated white gold (150 PD)
  • Hand-engraved and grand feu enamelled dial in white gold
  • Heat-blued steel hands
  • Genuine hand-sewn alligator strap
  • Pin buckle in 18ct gold or (optional) folding system

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