Ulysse Nardin Marine Chronometer No. 6903
Record status
Individual type · partial
Period
circa late 1950s
Maker / issuer
Ulysse NardinAccording to the auction catalog, this marine chronometer by Ulysse Nardin dates to circa the late 1950s and features a key-winding movement with a 48-hour power reserve.
The instrument is mounted in a brass bowl with gimbaled suspension inside a three-tier mahogany case equipped with gilt brass hardware and an exterior plaque reading 6903. The white dial displays Arabic numerals, an up/down state-of-wind indicator below 12 o'clock, and a subsidiary seconds register bearing the number 6903 in red. The source reports that the piece is accompanied by a wooden outer traveling box numbered 8609 and Japanese service paperwork from 1971.
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
- Outer Box
- UN 8609 Travelling outer box
- Case Number
- 6903
- Power Reserve
- 48-hour
- Place recorded
- Switzerland
- Case Description
- Three-tier mahogany case
- Dial/Bowl Diameter
- 12cm (approx.)
- Maker / attribution
- Ulysse Nardin
Design
- Visible features
- • White dial with Arabic numerals, an up-and-down power reserve indicator below 12 o'clock, and subsidiary seconds dial at 6 o'clock with '6903' printed in red. • Brass bowl with gimbaled suspension housed within a hinged mahogany inner box. • Oval metal plaque on the front of the inner wooden case engraved with '6903'. • Gilt brass drop handle visible on the side of the wooden case.
- Construction and Housing
- The chronometer is housed within a three-tier mahogany case featuring gilt brass handles. The assembly includes a middle section with a hinged lid containing a glass viewing port, protecting the gimbaled suspension and brass bowl. The wooden exterior case is reported to show signs of oxidation and scratches. The instrument is accompanied by an outer wooden traveling box.
- Mechanism and Provenance
- The timepiece utilizes a key-winding movement specified with a 48-hour power reserve. The source recommends an overhaul for the movement. The instrument includes an outer wooden traveling box numbered 8609. Documentation provided includes service records from Kajihara Kokisho Co., Ltd., based in Shimonoseki, Japan, dated September 10, 1971.
- Dial and Visual Identification
- The white dial features Arabic numerals with an up-and-down power reserve indicator positioned below the 12 o'clock marker. A subsidiary seconds dial is located at 6 o'clock, which includes the identifier '6903' printed in red. The dial and brass bowl assembly measure approximately 12 cm in diameter. The source provides a condition grading for the dial, noting it as 'Good' with slight scratching.
Identification
- Serial number
- 6903
- 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 is not uncased or shown in the primary photograph.
- Research required: The date 'circa late 1950s' is an auction house estimate and not independently marked on the visible dial.