Zenith El Primero El Primero Doublematic

Reference 03.2400.4046/21.C721

About this watch

The Zenith El Primero Doublematic embodies sophistication, precision, and functionality with its exceptional 36000 vibrations per hour automatic movement and 439 components. Its round stainless steel case features a bold 45.00 mm diameter and 15.60 mm height, paired with a sapphire crystal for scratch resistance. The black dial boasts Arabic numerals, luminous hands, and a power reserve of up to 50 hours. This multi-functional watch combines elegance and functionality, making it a statement piece that can be passed down through generations. With its array of features and stunning design, the El Primero Doublematic is more than just a watch; it's a companion for life's moments.
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Key Features

  • Automatic Zenith caliber El Primero 4046 movement
  • 36000 vibrations per hour for exceptional precision
  • Sapphire crystal for scratch resistance
  • Black dial with Arabic numerals and luminous hands
  • Power reserve of up to 50 hours
  • Chronograph function for precise timing
  • Alarm function for reminders

Specifications

Brand
Zenith
Family
El Primero
Model
El Primero Doublematic
Reference
03.2400.4046/21.C721
Movement Features
  • Hours, Minutes, Small Seconds, Additional 24 Hour Hand (adjustable)
  • Date
  • Chronograph, Column wheel
  • Alarm
  • Power Reserve Indicator
Case
Stainless Steel 45mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Brand New Zenith Chronomaster Original Reverse Panda El Primero Chronograph | 03.3200.3600/21.C903 | Full Zenith warranty | $7500 + shipping

Brand New Zenith Chronomaster Original Reverse Panda El Primero Chronograph | 03.3200.3600/21.C903 | Full Zenith warranty | $7500 + shipping

This brand new Zenith Chronomaster Original Reverse Panda model has been discontinued by the manufacturer and comes with a full 2-year warranty.

  • Condition: Brand new, never used
  • Case material:
  • Strap type: leather strap with deployant clasp
  • Warranty: 2-year warranty (extendable to 5 years)
Posted at
Jan 12, 2026, 6:11 PM
Active
[WTS] Zenith El Primero ref 20.0210.415 cal 3019 PHC

Zenith El Primero ref 20.0210.415 cal 3019 PHC

Zenith - 20.0210.415 · $3,500
This Zenith El Primero features the automatic caliber 3019 PHC and a gold-plated case with mineral crystal.

  • Condition: Excellent working order, may need servicing
  • Caliber: 3019 PHC automatic
  • Case material: Gold-plated
  • Crystal type: Mineral crystal
Posted at
Jan 12, 2026, 9:53 AM
Active
[WTS] Zenith Pilot Chronometro Tipo CP-2 Flyback – El Primero 405 - Historical Re-Issue

Zenith Pilot Chronometro Tipo CP-2 Flyback – El Primero 405 - Historical Re-Issue

Zenith - 405 · $42,000
  • Movement: El Primero 405
  • Flyback: yes, flyback function
Posted at
Jan 10, 2026, 10:33 AM
Active
[WTS][US] Zenith El Primero Chronomaster Sport - Meteorite Dial - 42mm - 03.3120.3600/76.M3100 - Full Set

[US] Zenith El Primero Chronomaster Sport - Meteorite Dial - 42mm - 03.3120.3600/76.M3100 - Full Set

A Zenith El Primero Chronomaster Sport watch in excellent mechanical condition, featuring a 42mm meteorite dial.

  • Condition: Fantastic condition with minor hairlines
  • Case Size: 42mm diameter
Posted at
Jan 6, 2026, 8:33 AM
Active
[WTS] Zenith Pilot Chronometro Tipo CP-2 Flyback – El Primero – Ref. 11.2240.405/21.C773 Aged Steel

Zenith Pilot Chronometro Tipo CP-2 Flyback – El Primero – Ref. 11.2240.405/21.C773 Aged Steel

This serious pilot chronograph is robust, purpose-built, and powered by one of the finest automatic chronograph movements ever made.

  • Case size: 43mm
  • Movement: El Primero 405 automatic flyback chronograph (5Hz)
  • Dial color: Matte black dial with vintage-toned lume
Posted at
Jan 3, 2026, 11:05 AM
Active
[WTS] Zenith Captain Chrono El Primero (03.2110.400) $2700 obo (see comment)

Zenith Captain Chrono El Primero (03.2110.400) $2700 obo (see comment)

Zenith - 03.2110.400 · $2,700
Up for sale is a Zenith Captain Chrono El Primero in excellent condition except for an intermittent mechanical issue with the date wheel. The watch keeps perfect time and has minor hairline scratches.

  • Condition: Used with functional issue (date wheel)
  • Issue: date wheel slips back occasionally
  • Accuracy: perfect time keeping after 18 hours
  • Condition: minor hairline scratches
Posted at
Dec 31, 2025, 1:01 PM
Active
Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete

Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete

A Zenith El Primero Chronomaster Open Heart chronograph watch, featuring a 42mm stainless steel case and in-house Caliber Zenith El Primero 4061 movement. The watch is dated October 2014 and has been recently serviced by Zenith.

  • Condition: Mint Condition with light hairline scratches only
  • Case size: 42mm diameter
  • Water resistance: 30m depth rating
Posted at
Mar 31, 2025, 1:26 PM
Active
Zenith El Primero Synopsis Open Heart � BOX & PAPERS � 03.2170.4613/01.M2170

Zenith El Primero Synopsis Open Heart � BOX & PAPERS � 03.2170.4613/01.M2170

A Zenith El Primero Synopsis Open Heart watch with a 40-millimeter case diameter and gold-toned hands, featuring an open heart design and classic modern architecture.

  • Condition: Excellent, little to no visible wear
  • Case Diameter: 40mm
  • Bracelet Length: 16.5 links
  • Bracket Fit: up to 7.25 inches in circumference
Posted at
Mar 27, 2025, 2:21 PM
Active
Zenith Chronomaster - El Primero - Original - Tricolor Dial - Complete

Zenith Chronomaster - El Primero - Original - Tricolor Dial - Complete

A Zenith Chronomaster Original with a tricolor dial, featuring an automatic movement and stainless steel case.

  • Condition: Excellent
  • Case size: 38mm diameter
Posted at
Mar 27, 2025, 12:51 PM
Active