The Zenith El Primero Stratos Flyback (Reference 85.2060.405/23.C714) is a high-performance luxury chronograph designed for aviation-grade durability. This specific model features a distinctive two-tone construction, combining 18k rose gold with Alchron, a high-tech alloy developed for the aeronautical and racing industries known for its corrosion resistance and low magnetic permeability.

• Case & Dimensions: A robust 45.5mm case made of 18k rose gold and black Alchron. It has a thickness of approximately 14.1mm to 14.8mm.

• Movement: Powered by the in-house Zenith El Primero Caliber 405 B.

  • High-Frequency: Beats at 36,000 vibrations per hour (vph), allowing the chronograph to measure time with exceptional precision.

  • Flyback Function: Allows the chronograph to be stopped, reset, and restarted with a single push of a button.

  • Power Reserve: Approximately 50 hours.

• Dial: Flat black dial with 18k rose gold applied indexes and faceted hands, both filled with Super-LumiNova for legibility in low light.

• Bezel: Unidirectional rotating bezel featuring a black ceramic insert for superior scratch resistance.

• Water Resistance: Rated to 100 meters (330 feet), making it suitable for light swimming but not deep diving.

• Strap: Typically comes on a glossy black alligator leather strap lined with rubber for protection and comfort.