El Primero:
Chronomaster Power Reserve

42 mm

95.2080.4021/51.C700

Special 150th Anniversary transparent sapphire crystal
Opening revealing the legendary beating heart of the El Primero movement
Silicon escape-wheel and lever
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Variations 1/6
  • MovementEl Primero 4021, Automatic
  • Calibre13¼``` (Diameter: 30 mm)
  • Thickness7.85 mm
  • Components248
  • Jewels39
  • Frequency36,000 VpH (5 Hz)
  • Power reservemin. 50 hours
  • FinishingOscillating weight with “Côtes de Genève” motif
    Chronograph:
    - Central chronograph hand
    - 30-minute counter at 3 o'clock
    Tachymetric scale
    Hours and minutes in the centre
    Small seconds at 9 o'clock
    Power-reserve indication at 6 o'clock
  • MaterialBrushed titanium
  • Diameter42 mm
  • Thickness14.05 mm
  • CrystalDomed sapphire crystal with anti-reflective treatment on both sides
  • Case-backTransparent sapphire crystal
  • Water-resistance10 ATM
  • DialBlue sunray-patterned
  • Hour-markersRhodium-plated, faceted and coated with SuperLuminova SLN C1
  • HandsRhodium-plated, faceted and coated with SuperLuminova SLN C1
  • Strap
  • Blue alligator leather strap with protective rubber lining
  • Clasp
  • Titanium triple folding clasp