International Watch Co. Flying Tourbillon Regulator
Record status
Individual type · partial
Period
1993
This 18K gold keyless hunting-cased pocket watch is a one-minute flying tourbillon regulator produced by International Watch Co. in 1993. The movement, Caliber 9820, features a carriage designed by Richard Habring, numbered 8.
The watch is constructed with a four-body bassine polished gold case and includes a gold hinged glazed cuvette. The white dial displays Breguet numerals with an outer minute ring and a subsidiary seconds dial, complemented by gold Feuille hands. The nickel movement includes engraved bridges and contains 21 jewels. The mechanical system utilizes a straight-line lever escapement and a monometallic balance with a self-compensating Breguet balance spring.
The flying tourbillon carriage is mounted on a large wheel, which is driven by an additional fifth wheel. Measuring 49 mm in diameter and 9.7 mm in thickness, the manufacturer labels this as the thinnest flying tourbillon pocket watch known.
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
- Flying tourbillon pocket watch
- Maker
- International Watch Co, Schaffhausen
- Movement
- Cal. 9820
- Dimensions
- 49 mm diameter, 9.7 mm thickness
- Case material
- 18K gold
- Carriage Maker
- Richard Habring
- Place recorded
- Switzerland
- Movement details
- 21 jewels, nickel construction with engraved bridges
- Maker / attribution
- International Watch Co, Schaffhausen
Design
- Case and Dial
- The watch is housed in an 18K gold hunting-style case. It is constructed as a four-body 'bassine' form with a polished finish. The design includes a hinged gold cuvette that features a glazed window, allowing for a direct view of the movement components while the back remains protected. The dial is finished in white, presenting a clean backdrop for the black Breguet-style numerals. An outer track marks the minutes, while a subsidiary dial at the six o'clock position tracks seconds. The time is indicated by gold Feuille hands, maintaining a consistent aesthetic with the case material.
- Visible features
- • White dial features black Breguet numeral hour markers • Engraved movement bridges visible through the open back • Hunting-case construction with hinged back and cuvette • Gold Feuille hands for hours and minutes
- Movement and Escapement
- The timepiece is powered by the IWC Caliber 9820. The movement measures 16 lignes and is constructed from nickel with engraved bridge work. It incorporates 21 jewels and operates with a straight-line lever escapement. The balance system is monometallic and incorporates a self-compensating Breguet balance spring. A key technical feature is the one-minute flying tourbillon. The carriage assembly is mounted on a large wheel which is engaged and driven by an additional fifth wheel, maintaining an equivalent diameter.
- Condition and Attribution
- The auction house provides a condition report using a specific grading system, assigning the object an overall 'AAA Excellent' grade. However, specific components are graded separately, with the case and movement listed as '3 Good'. The watch is signed by the manufacturer on both the dial and the case.
Identification
- Reference
- Cal. 9820
- Serial number
- No. 8
- 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: Auction description recommends an overhaul at the buyer's expense
- Research required: Unverified claim that this is the thinnest flying tourbillon pocket watch known