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J. Auricoste French Navy onboard chronometer

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1960s

This mechanical onboard chronometer by J. Auricoste was reportedly produced for French Navy naval torpedo operations and exercises during the 1960s. Housed in a circular metal case designed for bulkhead mounting, it features an off-white dial with a 0-to-60-second perimeter scale marked by Arabic numerals and an auxiliary 60-minute register positioned at 6 o'clock.

The seller records an affixed rear plate bearing numbers 64-1387 and 67-1438, which the listing attributes to a 1964 case and a 1967 movement. The dial is inscribed 'J. AURICOSTE HGER DE LA MARINE DE L'ETAT'.

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
Bulkhead timer chronometer
Thickness
approximately 7.1 cm
Dial diameter
approximately 15 cm
Dial signature
J. AURICOSTE STATE NAVY CLOCKMAKER
Outer diameter
approximately 20 cm
Place recorded
France
Movement engraving
J. AURICOSTE 10, rue La Boétie – Paris B
Maker / attribution
J. Auricoste
Serial plate markings
64-1387 and 67-1438

Design

Visible features
• Circular metal mounting flange with drilled perimeter holes for bulkhead fixing • Central seconds hand terminating at a perimeter 0-to-60 scale with five-unit Arabic markings • Subsidiary dial situated at 6 o'clock calibrated up to 60 minutes • External top plunger, small upper-left tab, and bottom lever control with curved arrow directional indicator • Dial marked 'J. AURICOSTE' and 'HGER DE LA MARINE DE L'ETAT' below the central arbor
Construction and Mounting
The J. Auricoste onboard chronometer features a metal case described as stainless steel. It is designed for bulkhead integration or mounting, incorporating a circular flange with holes along the perimeter. External features include a top plunger, a small upper-left tab, and a bottom lever control accompanied by a curved arrow directional indicator. The unit measures approximately 20 cm in outer diameter and 7.1 cm in thickness.
Dial and Timing Interface
The dial, approximately 15 cm in diameter, features an off-white color and is inscribed 'J. AURICOSTE' along with 'HGER DE LA MARINE DE L'ETAT'. The main display includes a perimeter scale graduated from 0 to 60 seconds with five-unit Arabic numerals and a central seconds hand. A subsidiary 60-minute register is located at the 6 o'clock position. The source notes that while the mechanism functions, the main hand requires a zeroing readjustment of approximately one-tenth of a second.
Identification and Records
A plate on the back of the instrument is marked with the numbers '64-1387' and '67-1438'. The listing attributes these to a 1964 case and a 1967 movement, respectively. Internal movement engravings are reported to read 'J. AURICOSTE 10, rue La Boétie – Paris B'. Specific service history, including usage for torpedo operations or particular vessels, is provided as seller attribution.

Identification

Reference
MER26AUR001
Serial number
64-1387 / 67-1438
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: Source notes the main hand requires minor zero readjustment of approximately one-tenth of a second
  • Research required: Specific submarine and torpedo-boat operational use represents seller attribution rather than proven individual service history
  • Research required: Movement and rear numbered plate are described in source text but not visible in this dial photograph
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