El Primero :
Winsor Annual Calendar

42 mm

18.2071.4054/01.C711

Automatic El Primero column-wheel chronograph Annual calendar associated with the legendary El Primero chronograph In-house developed and manufactured movement

Movement

  • MovementEl Primero 4054, Automatic
  • Calibre13¼``` (Diameter: 30 mm)
  • Thickness8.30 mm
  • Components341
  • Jewels29
  • Frequency36,000 VpH (5 Hz)
  • Power reservemin. 50 hours
  • FinishingOscillating weight with “Côtes de Genève” motif

Functions

    Chronograph:
    - Central chronograph hand
    - 60-minute counter at 6 o'clock
    Date indication at 6 o'clock
    Hours and minutes in the centre
    Small seconds at 9 o'clock
    Day/month indication at 3 o'clock

Case, dial and hands

  • MaterialRose gold
  • Diameter42 mm
  • Thickness13.85 mm
  • CrystalDomed sapphire crystal with anti-reflective treatment on both sides
  • Case-backTransparent sapphire crystal
  • Water-resistance5 ATM
  • Dials and countersMatt white
  • Hour-markersApplied Arabic numerals, gold-plated
  • HandsGold-plated or blued, faceted

Strap and clasp

  • Clasp
  • Rose gold pin buckle

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