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The Encyclopedia of Horology

Marine chronometer · Marine chronometer

Kirov double marine chronometer set

Partially verified

This lot consists of a double marine chronometer set manufactured by Kirov, dating from the period around 1960. The chronometers are housed within a brass-trimmed wooden box that includes electrical contacts and an on/off switch, measuring approximately 11-3/4 inches by 6-3/4 inches by 7 inches. Each of the two chronometers features a fusee movement with a detent escapement and a 56-hour duration. The dials display power reserve indicators and are signed in Cyrillic, with consecutive serial numbering. The movements are fitted with helical hairsprings. The set includes a winding key, a locking box with its own key, and an instruction manual. The auction description reports that the movements are running as of the time of cataloging, though accuracy and power reserve duration have not been tested.

A double marine chronometer set by Kirov featuring two gimbaled movements in a brass-trimmed wooden box.
A double marine chronometer set by Kirov featuring two gimbaled movements in a brass-trimmed wooden box. — Luxe Auctioneers (via Invaluable). Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.invaluable.com
Category
Marine chronometer · Marine chronometer
Maker / attribution
Kirov
Reference
Not recorded
Catalogue / lot identifier
5
Source-reported date
circa 1960
Source-reported place
USSR

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Movement and Dial Construction

The chronometer set comprises two individual 56-hour clock movements. These are constructed with fusee and detent escapement mechanisms, which serve to provide consistent force and timekeeping regulation. The movements are further equipped with helical hairsprings.

The dials are designed with dedicated power reserve indicators, allowing for the tracking of the winding state. The dials are marked with Cyrillic script and feature consecutive serial numbering, confirming their paired configuration within the set.

Evidence for this section
  • “56 hour detent escapement fusee clock movements have helical hairsprings and power reserve indicators on the dial”
  • “dials are signed in Cyrillic and consecutively numbered”

Casing and Mounting

The two chronometers are mounted within a shared wooden box featuring brass corner reinforcements and trim. The movements are secured using a gimbal system, which maintains their orientation.

The housing is designed with functional integration, incorporating three electrical contacts and an on/off switch. The total footprint of the assembly is approximately 11-3/4 inches by 6-3/4 inches by 7 inches.

Evidence for this section
  • “The brass cased clocks are gimbaled into the brass trimmed wood box with 3 electrical contacts and an on/off switch”
  • “The box measures approx.11-3/4 inches x 6-3/4 inches x 7inches”

Condition and Accessories

However, it notes that no testing was performed regarding the specific accuracy of the chronometers or the duration of their power reserves. The set is sold in its current state, with the recommendation that service may be required.

The set is accompanied by several original components, including a winding key, a wooden locking box with its respective key, and an instruction manual. A file of associated paperwork is also provided.

Evidence for this section
  • “Movement is running at time of cataloging, however it was not tested for the accuracy of time or duration of the power reserve”
  • “The set comes with the original winding key, wooden locking box with key and instruction manual”

Open research questions

  • What is the specific function of the electric contacts and on/off switch in the box?
  • What is the full translated meaning of the Cyrillic inscriptions on the dials and plaque?

Source evidence

Recorded claims and source quotations for Kirov double marine chronometer set
FieldSource-reported valueSource quotation
MakerKirov“by Kirov”
Datecirca 1960“CIRCA 1960”
Dimensions11-3/4 inches x 6-3/4 inches x 7 inches“11-3/4 inches x 6-3/4 inches x 7inches”
Movement TypeFusee detent escapement“56 hour detent escapement fusee clock movements”
DialSigned in Cyrillic“dials are signed in Cyrillic”
ComponentsIncludes wooden box, keys, and manual“comes with the original winding key, wooden locking box with key and instruction manual”

Visible details

  • Consecutive serial numbering visible on dial and box
  • Gimbaled mounting for two separate clock movements
  • Brass trim and corner reinforcements on the wooden housing
  • Cyrillic inscriptions on the dials and plaque

Research qualifications

  • Mechanical accuracy and power reserve duration remain untested
  • Exact origins beyond the name Kirov are not specified

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

TWO DAY DOUBLE MARINE CHRONOMETER SET BY KIROV, CIRCA 1960

Reviewed 2026-10-26 · Record 07ea3872f5

Terms in this record

Glossary explanations for terms named in this object’s record.

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