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Hamilton Mahogany Two-Day Marine Chronometer, Serial No. 1180

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

circa 1941

This two-day marine chronometer is signed Hamilton, Lancaster, PA, USA, and dated circa 1941 by the auction source. Housed in a brass gimbal within a mahogany case, the dial features Arabic numerals, spade hands, a subsidiary seconds dial, and an up-and-down power reserve indicator.

Inside the central tier of the case is a black metal plaque inscribed for the Ministry of Defence Hydrographic Department with stores reference H.S.527-3634 and serial number 1180. The chronometer is fitted with a single fusee movement and accompanied by an original winding key numbered 1180. The source records provenance to The John Mitchell Collection of Military Horology.

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
Two-day marine chronometer
Provenance
The John Mitchell Collection of Military Horology
Dial Diameter
9.5cm diameter
Movement Type
Single fusee movement
Serial Number
1180
Place recorded
USA
Case Dimensions
19.5cm wide, 19cm deep, 19cm high
Department Plaque
Ministry of Defence Hydrographic Dept Chronometer Marine Stores Ref. H.S.527-3634, Serial No.1180
Maker / attribution
Hamilton

Design

Visible features
• Chronometer bowl is mounted in a brass gimbal ring inside a wooden box • Dial features Arabic numerals, spade hands, an upper power reserve indicator, and a lower subsidiary seconds dial marked with '1180' and '1941' • A brass winding key stands upright in a corner socket of the case • A black metal plaque is fixed inside the opened hinged upper lid tier • A brass drop handle and side catch hardware are mounted on the exterior of the mahogany case
Dial and Visual Indicators
The dial has a diameter of 9.5cm and displays Arabic numerals paired with spade-style hands. Timekeeping functions are supplemented by a lower subsidiary seconds dial and an upper power reserve indicator. The dial is signed and numbered 1180.
Case Construction and Presentation
The chronometer is housed within a mahogany case measuring 19.5cm in width, 19cm in depth, and 19cm in height. The instrument is secured by a brass gimbal mounting located within the central tier of the box. Exterior features include brass hardware consisting of a drop handle and a side catch. A brass winding key, which is numbered 1180, is stored within a corner socket inside the case.
Military Identification and Provenance
A black metal plaque is fixed to the interior of the case. This plaque identifies the item as property of the Ministry of Defence Hydrographic Department, citing the stores reference H.S.527-3634 and serial number 1180. The provenance for this object is attributed to The John Mitchell Collection of Military Horology.

Identification

Reference
H.S.527-3634
Serial number
1180
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: The internal movement, escapement, and fusee assembly are concealed inside the brass bowl and not visible in the photograph
  • Research required: The complete top lid and any additional outer case or transport box are not shown
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