Pilot:
Type 20 Annual Calendar

48 mm

87.2430.4054/21.C721

Annual calendar associated with the legendary El Primero chronograph
Screwed-in crown
Case-back engraved with Zenith flying instruments logo
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Variations 1/1
  • 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
    One-counter 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
  • MaterialTitanium case with rose gold bezel, horns, push-pieces and crown.
  • Diameter48 mm
  • Thickness15.80 mm
  • CrystalDomed sapphire crystal with anti-reflective treatment on both sides
  • Case-backCase-back engraved with the Zenith aviation instruments logo
  • Water-resistance10 ATM
  • DialMatt black
  • Hour-markersArabic numerals in SuperLuminova SLN C1
  • HandsGold-plated and satin-finished
  • Strap
  • Brown alligator leather strap with protective rubber lining
  • Clasp
  • Titanium pin buckle
  • Louis Bleriot

    Louis Blériot

    Crossing the english channel

    On July 25, 1909, Louis Blériot achieved a feat crossing the Channel aboard the Blériot XI, wearing his trusty Zenith watch.

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  • Swiss watch Manufacture

    Tour the manufacture

    At the heart of expertise

    The Zenith Manufacture still operates in same place where it was founded in 1865. Today it accommodates 80 watchmaking professions.

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