Wristwatch · Chronometer chronograph

Chopard 1000 Miglia Ref. 8331 Chronograph

Partially verified

This Chopard 1000 Miglia wristwatch, reference 8331, is a stainless steel self-winding certified chronometer chronograph produced circa 2005. It features a 40 mm diameter three-body case with brushed finishing, straight lugs, and a fixed bezel with tachometer graduation. The silver dial is decorated with a guilloché pattern and is set with luminous Arabic numerals and dots. It includes three black subsidiary dials for constant seconds, a 30-minute register, and a 12-hour register, along with a date aperture positioned between 4 and 5 o'clock. The movement is a rhodium-plated caliber 2894-2, equipped with 37 jewels, a straight-line lever escapement, and a monometallic balance adjusted to five positions. The watch is completed with a transparent screw-down case back and a stainless steel Chopard buckle,

Chopard 1000 Miglia Chronograph in stainless steel with silver guilloché dial and tire-tread pattern rubber strap. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source: catalog.antiquorum.swiss
Category: Wristwatch · Chronometer chronograph
Maker / attribution: Chopard
Reference: 8331
Catalogue / lot identifier: 145
Source-reported date: circa 2005
Source-reported place: Switzerland
Source-reported serial: 827946

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

Case and Dial Construction

The timepiece is housed in a 40 mm stainless steel case with a three-body construction and brushed finish. It features straight lugs and a sapphire crystal. The bezel is integrated into the design with a tachometer graduation, allowing for speed calculations. The case back is secured by eight screws and incorporates a sapphire crystal viewing window, providing a visual look at the internal movement.

The dial is rendered in silver with a guilloché finish. It displays luminous Arabic numerals and index dots. The subsidiary registers for constant seconds, the 30-minute recorder, and the 12-hour recorder are highlighted with black rings. A date display is situated between the 4 and 5 o'clock positions. The luminous baton hands are designed for visibility.

Evidence for this section

“Three-body, brushed, straight lugs, tachometer graduation on the bezel, transparent case back with 8 screws, sapphire crystals.”
“Silver with luminous Arabic numerals and dots, subsidiary black ring guilloché dials for the seconds, the 30-minute and 12-hour registers, aperture for the date between 4 & 5.”

Movement and Escapement

Powering the watch is the self-winding Caliber 2894-2. This movement is finished with rhodium plating and features oeil-de-perdrix and fausses cotes decorations. It comprises 37 jewels and employs a straight-line lever escapement.

Functional components include a monometallic balance adjusted to five positions, a shock absorber, a self-compensating flat balance spring, and a micrometer regulator. The auction description notes that the movement is in very good condition but recommends a professional overhaul.

Evidence for this section

“Cal. 2894-2, rhodium-plated, oeil-de-perdrix and fausses cotes decoration, 37 jewels, straight-line lever escapement”
“monometallic balance adjusted to 5 positions, shock absorber, self-compensating flat balance spring, micrometer regulator.”

Signatures and Attribution

The watch is identified as a Chopard product from the 1000 Miglia collection. The auction records confirm that the signature is present on the dial, the case, and the movement. The piece is classified as a certified chronometer chronograph, manufactured circa 2005.

The case back indicates the watch is serial number 827946, and it is accompanied by a stainless steel buckle bearing the Chopard name. The auction report assigns the watch a high grading, noting that the dial is in an 'as new' condition.

Evidence for this section

“Chopard, Genève, "1000 Miglia," Certified Chronometer Chronograph”
“Dial, case and movement signed.”

Open research questions

What specific laboratory certified this watch as a chronometer in 2005?
Was the rubber strap the original factory configuration or a later replacement?

Source evidence

Recorded claims and source quotations for Chopard 1000 Miglia Ref. 8331 Chronograph
Field	Source-reported value	Source quotation
Maker	Chopard	“Chopard, Genève”
Reference	8331	“Ref. 8331”
Case Number	827946	“case No. 827946”
Movement Caliber	2894-2	“Cal. 2894-2”
Case Dimensions	40 mm x 13 mm	“DIAM. 40 mm. THICKNESS 13 mm.”
Jewel count	37	“37 jewels”
Case Back	Transparent with 8 screws	“transparent case back with 8 screws”
Balance adjustment	5 positions	“monometallic balance adjusted to 5 positions”

Visible details

Rubber strap features a tire-tread pattern.
Tachometer scale is engraved directly on the bezel.
Three-register dial layout includes a prominent 1000 Miglia race logo.
Luminous material is applied to both Arabic numerals and baton hands.

Research qualifications

The auction house reports that the movement requires an overhaul.
Minor surface scratching is noted on the case.
Specific water resistance depth rating is not provided.

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

Consulted source

CHOPARD 1000 MIGLIA Chopard, Genève, "1000 Miglia," Certified Chronometer Chronograph, case No. 827946, Ref. 8331. Made circa 2005. Fine, self-winding, water-resistant, stainless steel Chronometer wristwatch with date, round button chronograph, registers, tachometer and a stainless steel Chopard buckle.

Reviewed 2026-10-26 · Record 72f12b7e65

Terms in this record

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