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Housed inside the 38mm case, and entirely visible through the sapphire case back, sits the Zenith El Primero Automatic Caliber 3600 movement. The Caliber 3600 shares the same high-beat rate and ...

Showdown ✓ Omega's new Speedmaster Pilot Flight Qualified faces off against Zenith's Pilot Big Date Flyback ✓ Vote here! ✓ ...

The Zenith PILOT Big Date Flyback PORTER Edition is powered by the El Primero automatic high-frequency chronograph calibre. The movement was made exclusively for this PILOT watch, and offers big ...

Water resistant to 20 ATM (200 metres), the Zenith Defy Extreme Jungle uses an El Primero 9004 calibre automatic movement with up to 50 hours of power reserve. A large watch, the brushed titanium ...