The ZENITH aviator's chronograph returns in the PILOT Big Date Flyback. Crafted in a 42.5mm steel case with an oversized crown, paired with a black corrugated dial featuring large luminescent Arabic numerals and coloured indications for easier reading. Delivered with interchangeable black cordura-effect rubber and brown calfskin leather straps. Powered by the El Primero 3652 automatic high-frequency chronograph calibre with big date and the flyback functions. A second strap is offered to fully ...