Rare Original 1970s Zenith el Primero Ref. 01 0200 415 Big Blue screen shaped, on a rarer Zenith steel bracelet. Only 2000 pieces made (1500 blue dial, 500 on black dial). Known as the ‘Big Blue’ or ‘TV case watch’ this timepieces is powered by the Caliber Automatic 3019PHC 31 jewel movement, regarded by some as one of the greatest Blue metallic ‘transitional’ dial with silvery grey highlights. Polished stainless steel square retro case, 40 mm. full size. Screw down stainless steel case-back signed – 01-0200-415. Original Zenith signed crown and clasp. Tachymeter inner bezel, Date at 4-5 o-clock position. The watch is in overall mint condition and all functions work properly. A beautiful, iconic original 70s watch.