El Primero :

44 mm


44 mm diameter Tourbillon chronograph Automatic movement with unique patented date system around the edge of the Tourbillon carriage calibre El Primero 4035 D: 381 components, 35 jewels and 36,000 VpH


  • MovementEl Primero 4035 D, Automatic
  • Caliber16½```
    (Diameter: 37 mm)
  • Thickness7.66 mm
  • Components381
  • Jewels35
  • Frequency36,000 VpH (5 Hz)
  • Power reservemin. 50 hours
  • FinishingGold oscillating weight with “Côtes de Genève” pattern


    Hours and minutes in the centre

    Tourbillon :

    The carriage is positioned at 11 o'clock

    The carriage makes one turn per minute

    The small seconds is on the Tourbillon carriage

    The date indication is positioned around the carriage

    Central seconds hand

    30-minute counter at 3 o'clock

    12-hour counter at 6 o'clock

Case, dial and hands

  • MaterialEntirely gem-set white gold
  • Diameter44 mm
  • Thickness15.60 mm
  • CrystalDomed sapphire glass with anti-reflection treatment on both sides
  • Case-backTransparent sapphire glass
  • Water-resistance3 ATM
  • Dials and countersEntirely set with diamonds, counters in mother-of-pearl
  • Hour-markersBaguette-cut diamonds
  • HandsFaceted, rhodium-plated and coated with SuperLuminova SLN C1

Strap and clasp

  • Strap
  • Alligator leather strap with protective rubber lining
  • Clasp
  • White gold triple folding clasp

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