El Primero :

44 mm


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


  • MovementEl Primero 4035 D, Automatic
  • Calibre16½``` (Diameter: 37 mm)
  • Thickness7.66 mm
  • Components381
  • Jewels35
  • Frequency36,000 VpH (5 Hz)
  • Power reservemin. 50 hours
  • FinishingOscillating weight with “Côtes de Genève” motif


    - The carriage is positioned at 11 o'clock
    - The carriage makes one turn per minute
    - Small seconds on the tourbillon carriage
    - The date indication is positioned around the carriage
    - 12-hour counter at 6 o'clock
    - 30-minute counter at 3 o'clock
    Hours and minutes in the centre
    Central seconds hand

Case, dial and hands

  • MaterialStainless steel
  • Diameter44 mm
  • Thickness15.60 mm
  • CrystalDomed sapphire crystal with anti-reflective treatment on both sides
  • Case-backTransparent sapphire crystal
  • Water-resistance10 ATM
  • Dials and countersBlack sunray-patterned
  • Hour-markersRhodium-plated, faceted and coated with SuperLuminova SLN C1
  • HandsRhodium-plated, faceted and coated with SuperLuminova SLN C1

Strap and clasp

  • Clasp
  • Stainless steel triple folding clasp

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