Movement: automatic Zenith El Primero caliber 3019PHC, one of the first automatic chronograph movements in history
Dial: original aged dial with the classic tricolour configuration typical of the A3817 reference
Inner Bezel: tachymeter scale
Crystal: plexiglass
Strap: high-quality black leather
Reference: A3817
Year of production: early 1970s
Condition: excellent, completely original and well preserved
Key Features
Rare version of the El Primero family featuring the tricolour dial
37 mm tonneau-shaped case with sporty lines typical of Zenith’s 1970s design language
El Primero 3019PHC movement, one of the most iconic automatic chronographs ever made
Original dial with beautiful, even patina—highly desirable among collectors
Historical Context
The A3817 is one of the most sought-after references from the first generation of the legendary El Primero movement, introduced in 1969 and still considered one of the greatest automatic chronographs ever produced. Its tricolour dial configuration and sporty case set it apart from other variants. This example, in excellent condition with a naturally aged original dial, represents one of the most appealing and collectible combinations for Zenith enthusiasts.
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