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Zenith El Primero G381 automatic chronograph wristwatch in 18k gold

DocumentedSupported by at least one credible specialist source.

Record status

Individual type · partial

Period

circa 1970

The timepiece is crafted from 18k gold, featuring a 38 mm case with a brushed bezel, large chronograph pushers, and an original crown adorned with the Zenith star.

It is presented on an 18k gold bracelet with a total length of 165 mm. The white dial is a striking two-toned design, incorporating brown subsidiary registers and an inner scale graduated from 0-100, contrasted by a white tachymeter scale. It features a distinct red paddle-style chronograph hand. Powering the watch is the legendary Calibre 3019PHC, one of the first automatic chronograph movements, known for its high-beat frequency of 36,000 vibrations per hour.

This engineering innovation allows for measurement accuracy to one tenth of a second. The watch is defined by its classic facetted lugs and screw-back case, representing an iconic milestone in the history of horology and the foundational era of the El Primero movement range.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Physical characteristics

Length
165 mm
Weight
111 g
Material
18k gold
Dimensions
38 mm diameter

Technical characteristics

Caliber
3019PHC
Features
Chronograph, date, tachymeter
Movement
Automatic
Frequency
36,000 vibrations per hour

Design

Case
Screw back, facetted lugs, brushed bezel
Dial
White with brown registers and inner scale

Identification

Source note
Described from a single auction-house listing published on Invaluable (reproduced with Invaluable's permission). Details apply to that one example; other examples of the type may differ, and the listing is supplementary evidence, not authentication.
Maker named in listing
Zenith

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.