ZENITH Defy El Primero Retro vintage chronograph from the legendary range of watches produced by Zenith in the 1970s Only 1000 pieces ever made Case Stainless Steel 38 x 45 mm Screw case back signed Zenith logo signed crown original Movement Zenith automatic 3019 PHC calibre 31 jewel The first conceived automatic chronograph movement and highly respected amongst experts and collectors alike. Regarded by some as one of the greatest chronograph calibres Dial Turquoise Blue with Silver sub dials and raised baton markers Red chrono hand date aperture at 5 Bracelet Original Zenith stainless steel bracelet with Fliplock clasp MZ ends ZR - n. 8 links total length cm 17.3 Used condition Reference - A782 Dating to early 1970s Watch is running well with all functions working correctly but may need future servicing work. Sold as seen in the Photos and description. Watch have original Zenith box.