When the El Primero automatic chronograph calibre was first announced in 1969, it took
the world of watchmaking by storm. It was the first automatic chronograph movement and brought
forth a set of distinctive features, which have allowed it to stand the test of time
and remain an exceptional movement half a century on: a high frequency of
36’000 vph, a column-wheel chronograph mechanism, and an automatic winding system that delivers 50 hours




Reference 03.A384.400/21.C815

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Complication: Chronograph, Central chronograph hand, 12-hour counter at 6 o'clock, 30-minute counter at 3 o'clock Hours and minutes in the centre Small seconds at 9 o'clock Tachymetric scale & Date indication at 4:30
Movement: Calibre el primero 400 automatic
Power Reserve: 50 hours
Water Resistance: 10 atm
Case Material: Stainless Steel
Case Diameter: 37 mm
Caseback: Open Caseback
Dial: White-lacquered dial with black-coloured counters
Hands: Hour-Markers : rhodium-plated, faceted and coated with super-luminova. Hands rhodium plated faceted and coated with super-luminova
Strap: comes in a black alligator strap or ladder bracelet, buckle stainless pin buckle