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Minerva Jumbo Chronograph Reference 1327

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

late 1940s, early 1950s

This stainless steel Minerva 'Jumbo' chronograph, reference 1327, dates to the late 1940s or early 1950s. The watch is powered by the manual-wind Calibre 13-20 movement, a column-wheel controlled chronograph calibre of the mid-20th century.

It is housed in a three-piece snap-back case featuring a bezel, mid-case, and caseback, with fixed bar stepped lugs. The watch measures approximately 37mm in diameter. The silvered dial displays Arabic numerals, an outer seconds track, and two subsidiary registers for running seconds and a 30-minute counter, with blued steel sword hands. The case construction is described as an attempt to introduce water-resistant properties.

The dial bears the Minerva signature and the text 'ANTIMAGNETIQUE'.

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.

Technical characteristics

Type
Chronograph
Maker
Minerva
Movement
Calibre 13-20
Case size
Approximately 37mm
Case type
Three-piece snap-back
Reference
1327
Dial details
Silvered, Arabic numerals, two registers
Estimated date
Late 1940s, early 1950s
Place recorded
Switzerland
Maker / attribution
Minerva

Design

Case and Dial
The watch features a three-piece snap-back case, comprising a bezel, mid-case, and caseback. The construction is noted for its oversized proportions and fixed bar stepped lugs. The design is cited as an early effort to incorporate water-resistant elements into timing instruments. The dial is finished in silver and features bold printed black Arabic numerals. It includes an outer seconds track and two subsidiary registers for running seconds and a 30-minute counter. The hands are fashioned from blued steel, providing contrast against the dial. The dial is marked with the Minerva name and the word 'ANTIMAGNETIQUE'.
Visible features
• Fixed bar lugs • Two subsidiary register dials • Blued steel hands • Snap-back case construction
Movement and Function
The timepiece is driven by the Calibre 13-20 manual-wind movement. This movement is associated with the 20CH family of calibres produced by Minerva during the middle of the 20th century. The movement is noted for its column-wheel control mechanism and specific finishing. It functions as a chronograph, utilizing the twin subsidiary registers on the dial to track running seconds and a 30-minute duration.
Provenance and Context
The watch is attributed to the late 1940s or early 1950s. The manufacturer, Minerva, is credited with the engineering and production of its chronograph movements in Switzerland during this period. The watch is described by the vendor as a 'Jumbo' model due to its dimensions, with the overall aesthetic characterized by a utilitarian and mid-century design focus.

Identification

Reference
1327
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

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

Research required

  • Research required: Exact year of production is not provided beyond a broad range
  • Research required: Source does not provide a specific serial number
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