Zenith Vintage El Primero A386 Tri Color Dial, A 386, arguably the most collectible vintage Zenith with less than 2,000 examples made, the first automatic chronograph movement ever made, the stainless steel case is in very good condition, automatic high beat El Primero movement, silver dial with iconic tri-color subdials, the luminous material is original to the dial and hands, size: 37mm, thickness: 12.8mm, Excellent Condition and comes with European Watch Company Pouch and Zenith Extract from the archives confirming delivery in March 1971 Email us about this watch Trade for this watch $16,900 This is a vintage stainless steel Zenith El Primero Chronograph A386. There is a solid screw-down case back and round chronograph pushbuttons. The 37mm diameter solid two-body case, hooded lugs, and flat bezel are polished. The original silver dial has applied steel faceted luminous baton indexes, skeletonized white baton hands with luminous inserts, and a red center chronograph hand with a rectangular luminous indicator around a minute/one-fifth second scale. A quick set date aperture window is 4 and 5 o'clock. There is a perimeter tachymeter to 500 UPH, and inside on a plain black reserve is a 1/10th second ring. It has distinctive tri-color subsidiary dials, including a running seconds indicator at 9 o'clock, a 12-hour chronograph register at 6 o'clock, and there is a 30-miute totalizer at the three o'clock position. It has a 50-hour power reserve at full wind, and the 12.8mm thick case, dial, and movement are all signed. This Zenith El Primero A386 has a mechanical automatic self-winding high beat El Primero caliber 3019 PHC chronograph movement. It's rhodium plated, and it's constructed with 31 jewels, 135 components, an Incabloc anti-shock device, and a straight-line lever escapement. It includes a monometallic balance, a self-compensating flat balance spring, and an index regulator. It has a dry molybdenum-sulfide based lubrication system, and an embellished tungsten carbide weight segment. The mechanism oscillates at a frequency of 36,000 vph (5Hz). The Zenith El Primero Chronograph A386 was introduced in January of 1969, and c. 2,500 examples were produced until 1971. Because it beats at a frequency of 36,000 times per hour – twice that of the standard 28,800 vph movements, the seconds hand seems to glide rather than tick.