El Primero :
36'000 VpH

42 mm

03.2040.400/21.C496

Automatic high-frequency column-wheel chronograph Calibre El Primero 400 b: 326 components, 31 jewels and 36,000 VpH Tachometric scale on the flange

Movement

  • MovementEl Primero 400 B, Automatic
  • Caliber13½```
    (Diameter: 30 mm)
  • Thickness6.60 mm
  • Components326
  • Jewels31
  • Frequency36,000 VpH (5 Hz)
  • Power reservemin. 50 hours
  • FinishingOscillating weight with “Côtes de Genève” pattern

Functions

    Hours and minutes in the centre

    Small seconds hand at 9 o'clock

    Large Date indicator at 6 o'clock

    Tachometric scale
    Chronograph:

    12-hour counter at 6 o'clock

    30-minute counter at 3 o'clock

    Central chronograph hand

Case, dial and hands

  • MaterialSteel
  • Diameter42 mm
  • Thickness12.75 mm
  • CrystalDomed sapphire glass with anti-reflection treatment on both sides
  • Case-backTransparent sapphire glass
  • Water-resistance10 ATM
  • Dials and countersBlack sunray
  • Hour-markersFaceted, rhodium-plated and coated with SuperLuminova SLN C1
  • HandsFaceted, rhodium-plated and coated with SuperLuminova SLN C1

Strap and clasp

  • Strap
  • Alligator leather strap with protective rubber lining
    Steel bracelet
  • Clasp
  • Steel triple folding clasp

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