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The Encyclopedia of Horology

Wristwatch · Chronograph

Zenith Pilot Chronograph Type CP 2 Flyback Ref 11.2240.405

Partially verified

This Zenith Pilot Chronograph Type CP 2 Flyback, reference 11.2240.405, is a contemporary stainless steel wristwatch. It features a round gray dial equipped with white Arabic hour numerals, baton-style hands, and two sub-dials positioned at three and nine o'clock for chronograph functions. The dial includes an outer seconds ring and is marked with "Flyback" at the six o'clock position and "Swiss Made" at the bottom. The watch is fitted with a black graduated bezel and a crown bearing the Zenith logo. It utilizes the automatic El Primero caliber 405 movement, which incorporates 31 jewels and 331 components. The case features an exhibition sapphire back engraved with the reference number and serial identifier. The watch is completed with an original leather strap and a steel Zenith buckle. The diameter is 43mm, with a lug-to-lug length of 51mm.

Front view of the Zenith Pilot Chronograph Type CP 2 Flyback displaying the gray dial, bezel, and crown.
Front view of the Zenith Pilot Chronograph Type CP 2 Flyback displaying the gray dial, bezel, and crown. — Laurent Fine Watches. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.laurentfinewatches.com
Category
Wristwatch · Chronograph
Maker / attribution
Zenith
Reference
11.2240.405
Catalogue / lot identifier
Zenith-Pilot-C-07-13-2026
Source-reported date
Contemporary
Source-reported place
Switzerland
Source-reported serial
383 133

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

Dial and Case Construction

The watch displays a round gray dial featuring white Arabic hour numerals and white baton-style hands. Two sub-dials are integrated, with the three o'clock sub-dial dedicated to minutes and the nine o'clock sub-dial to seconds. The word "Flyback" is printed at the six o'clock position, and the dial edge displays the "Swiss Made" signature. An outer second ring serves as a graduation for chronograph operations.

The exterior includes a black bezel with a graduation scale up to 45. The case is constructed of stainless steel and includes a winding crown marked with the manufacturer's logo. The back case is described as aged stainless steel with an exhibition sapphire window, displaying technical data engraved around the perimeter, including the reference number and serial number.

Evidence for this section
  • “Beautiful Zenith Pilot Chronograph Flyback watch with round gray dial and two sub dials with minutes a 3 o’clock and seconds at 9 o’clock.”
  • “At 6 o’clock is engraved “Flyback”.”
  • “It is an aged stainless steel back case with exhibition sapphire and engraved around “Zenith 383 133 – 11.2240.405 – 100m”.”

Movement and Functionality

The timepiece is powered by the Zenith El Primero 405 automatic movement, which functions as the base caliber for the El Primero 400 series. This movement consists of 331 individual components and operates with 31 jewels. It provides a 50-hour power reserve and features a frequency of 36,000 vibrations per hour.

The movement enables chronograph and flyback capabilities. This specific caliber was introduced to the market in 1997. The exhibition case back allows for internal viewing of the mechanism.

Evidence for this section
  • “Automatic Zenith movement with caliber El primero 405 with 31 jewels and 36,000 A/h.”
  • “The power reserve is 50 hours. Functions are chronograph and flyback.”
  • “It comes with 331 components and was introduced in 1997.”

Condition and Accessories

The auction description reports the overall condition of the timepiece as very good. It is supplied with its original strap and a corresponding steel Zenith buckle. The watch is not accompanied by any original presentation box or manufacturer documentation.

The measurements for the object are 43mm in diameter, excluding the winding crown, with a total length of 51mm measured across the lugs.

Evidence for this section
  • “CONDITION: VERY GOOD”
  • “BOX: NO”
  • “PAPER: NO”
  • “The watch comes with the original strap and steel Zenith buckle.”

Open research questions

  • What is the specific production year for the serial number 383 133?
  • Does the 'aged' description of the stainless steel back refer to a specific factory finishing technique or a result of secondary market use?

Source evidence

Recorded claims and source quotations for Zenith Pilot Chronograph Type CP 2 Flyback Ref 11.2240.405
FieldSource-reported valueSource quotation
MakerZenith“ZENITH”
Reference11.2240.405“11.2240.405”
Case MaterialStainless Steel“STAINLESS STEEL”
Serial Number383 133“Zenith 383 133 – 11.2240.405 – 100m”
Jewel Count31 jewels“31 jewels”
FunctionsChronograph and flyback“Functions are chronograph and flyback.”

Visible details

  • Gray dial with two sub-dials
  • Black rotating bezel with 45-minute graduation
  • Baton-style hands with white finish
  • Crown features engraved Zenith logo

Research qualifications

  • Serial number 383 133 is reported as engraved on the case back, though verification of individual piece production date is limited
  • The designation 'Contemporary' is assigned by the source, lacking a specific year of manufacture

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

Consulted source

ساعت مچی Zenith Pilot Chronograph Type CP 2 – Flyback رفرنس 11.2240.405

Reviewed 2026-11-02 · Record 37d8231c52

Terms in this record

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

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