IWC Ref. 2400 Stainless Steel Wristwatch
Record status
Individual type · partial
Period
1970s
This water-resistant wristwatch, referenced 2400, was produced by International Watch Co. in the 1970s. Housed in a two-body 'Staybrite' stainless steel case measuring 34 mm in diameter and 9.5 mm in thickness, the watch features a polished and brushed finish with an inclined bezel and a screwed-down case-back.
It is presented on an integral stainless steel mesh bracelet. The watch is powered by the manual-wind Calibre C.403 movement, which is rhodium-plated and decorated with fausses cotes. The movement comprises 17 jewels, a straight-line lever escapement, and a monometallic balance adjusted to three positions, equipped with a shock absorber and a micrometer regulator. The satiné silver dial displays applied steel faceted baton indexes and outer minute divisions, complemented by steel baton hands.
The watch, including the dial, case, and movement, is signed by the manufacturer.
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
- Center seconds wristwatch
- Maker
- International Watch Co., Schaffhausen
- Reference
- 2400
- Jewel Count
- 17
- Case Diameter
- 34 mm
- Case Material
- Staybrite stainless steel
- Serial (Case)
- 2175438
- Place recorded
- Switzerland
- Movement Caliber
- C.403
- Serial (Movement)
- 2158953
- Maker / attribution
- International Watch Co.
Design
- Case and Dial
- The watch is constructed with a two-body 'Staybrite' stainless steel case measuring 34 mm in diameter and 9.5 mm in thickness. The exterior features a combination of polished and brushed surfaces, accompanied by an inclined bezel. Access to the movement is provided via a screwed-down case-back. The watch is completed by an integral stainless steel bracelet. The dial is finished in a satiné silver tone and is adorned with applied steel faceted baton indexes. Outer minute divisions are present around the perimeter. Time is indicated by steel baton hands. The dial, case, and movement are signed by the manufacturer.
- Visible features
- • Integral mesh-style metal bracelet • Applied baton hour markers • Plain baton-style hands • Textured silver dial surface
- Movement and Escapement
- The watch operates on the IWC Calibre C.403, a manual-wind movement. The movement is finished with rhodium plating and features fausses cotes decoration. The construction includes 17 jewels and a straight-line lever escapement. Technical features of the caliber include a monometallic balance adjusted to 3 positions, a shock absorber system, a self-compensating flat balance spring, and a micrometer regulator for precise adjustment.
- Condition and Authenticity
- The auction description provides a grade of 'A' for the item. The case is described as being in good condition with minor signs of wear, specifically noted as 'slightly scratched'. The dial is also evaluated as being in good condition. Regarding the internal components, the auction report specifies that the original hands are present.
Identification
- Reference
- 2400
- Serial number
- 2175438
- 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: Condition report indicates the movement requires an overhaul
- Research required: The case shows slight scratches