Zenith El Primero El Primero Chronomaster 42 Stainless Steel / Blue / Alligator

Reference 03.2040.400/53.C700

About this watch

The Zenith El Primero Chronomaster 42 is a masterpiece of luxury watchmaking, blending precision, style, and history in perfect harmony. Its stunning blue sunburst dial shifts with the light, creating a dynamic look that's hard to ignore. The stick and dot indexes are applied with precision, offering a clean look while ensuring readability. At its heart lies the Zenith caliber El Primero 400B, an automatic movement known for its high frequency of 36,000 vibrations per hour, allowing for exceptional accuracy. With a power reserve of approximately 50 hours, this watch is perfect for everyday wear. The luxurious alligator leather strap adds a touch of elegance to the overall design, while the stainless steel case provides durability and a polished look that catches the eye.
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Key Features

  • Zenith caliber El Primero 400B automatic movement
  • 42mm diameter stainless steel case
  • 100m water resistance
  • 50hr power reserve
  • Luxurious alligator leather strap
  • Blue sunburst dial with stick and dot indexes
  • High frequency of 36,000 vibrations per hour

Specifications

Brand
Zenith
Family
El Primero
Model
El Primero Chronomaster 42 Stainless Steel / Blue / Alligator
Reference
03.2040.400/53.C700
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Column wheel
Case
Stainless Steel 42mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Ultra Rare Zenith El Primero Tourbillon Chronograph in 18K White Gold - Just 50 Made - Collector Set

Ultra Rare Zenith El Primero Tourbillon Chronograph in 18K White Gold - Just 50 Made - Collector Set

The Zenith El Primero is a legendary chronograph featuring an incredible tourbillon and limited to just 50 pieces. The watch is housed in 18k white gold and features a beautiful black dial highlighting the tourbillon.

  • Condition: Really clean condition, minimal wear throughout
  • Case diameter: 45mm
  • Movement: El Primero automatic chronograph cal 4005
  • Strap material: Zenith black leather strap
Posted at
May 10, 2026, 11:09 PM
Active
[WTS] Zenith Tipo CP-2 Chronograph 03.2240.4069, Underrated El Primero Beast (641/1000)

Zenith Tipo CP-2 Chronograph 03.2240.4069, Underrated El Primero Beast (641/1000)

Zenith - 03.2240.4069 · $4,150
Inspired by original Cairelli-issued military chronographs, this Zenith Tipo CP-2 Chronograph features a strong vintage tool watch character with a matte black dial and bold lume markers.

  • Condition: great, with light signs of normal wear
  • Case size: 43mm diameter
  • Movement: Zenith El Primero automatic chronograph (Cal. 4069)
  • Water resistance: 100m depth rating
Posted at
May 8, 2026, 8:40 PM
Active
[WTS] Zenith Chronomaster. El Primero. Power Reserve. Open Heart. OEM Strap, OEM Deployant Clasp...

Zenith Chronomaster. El Primero. Power Reserve. Open Heart. OEM Strap, OEM Deployant Clasp...

A Zenith Chronomaster with El Primero movement and Power Reserve, featuring an Open Heart design.

Posted at
May 8, 2026, 5:24 PM
Active
[WTS][US] Zenith El Primero Chronomaster Sport - White Dial - 41mm - 03.3100.3600/69.M3100 - Full Set

[US] Zenith El Primero Chronomaster Sport - White Dial - 41mm - 03.3100.3600/69.M3100 - Full Set

Up for sale is a Zenith El Primero Chronomaster Sport - White Dial - 41mm, which functions perfectly mechanically without issue.

  • Condition: Fantastic condition with few hairlines on clasp, case, and bracelet
  • Case size: 41mm diameter
  • Box: full set with box, travel case, user manual, card holder & warranty card
Posted at
May 7, 2026, 6:40 AM
Active
[WTS] Zenith El Primero New Vintage 1969 Limited Edition 40th Anniversary 96 1969 469/ 77 C683 ♦️Lightly Used 2014♦️

Zenith El Primero New Vintage 1969 Limited Edition 40th Anniversary 96 1969 469/ 77 C683 ♦️Lightly Used 2014♦️

This is a Zenith El Primero New Vintage 1969 Limited Edition 40th Anniversary watch, produced in 2014. It comes with the full set of box and papers.

  • Condition: Lightly Used
  • Year: 2014
  • Box And Papers: includes full set
  • Shipping Cost: 150
Posted at
May 6, 2026, 5:36 AM
Active
[WTS] Zenith “Open Heart” - El Primero Movement - Sexy AF

Zenith “Open Heart” - El Primero Movement - Sexy AF

Zenith - 03.0520.4021 · $2,350
A rare white dial Zenith El Primero 'Open Heart' automatic chronograph watch featuring an open-heart design and high-beat movement.

  • Condition: Very Good
  • Dial color: white
  • Case size: 42mm diameter
  • Movement: El Primero high-beat automatic chronograph (36,000 vph)
Posted at
May 5, 2026, 8:22 PM
Active
[WTS] Zenith El Primero Chronomaster Poker Chip 97.G383.400/38.C881 ♦️Like New 2022♦️

Zenith El Primero Chronomaster Poker Chip 97.G383.400/38.C881 ♦️Like New 2022♦️

A Zenith El Primero Chronomaster Poker Chip from 2022, in excellent condition with box and papers.

  • Condition: Like New
  • Year Of Production: 2022
  • Case Condition: Like New
  • Includes Accessories: Full set (box & papers)
Posted at
May 5, 2026, 2:26 AM
Active
[WTS] OG Zenith El Primero Flyback Chronograph - For The French Military - Ref 02.0470.405/25 - FULL COLLECTOR SET

OG Zenith El Primero Flyback Chronograph - For The French Military - Ref 02.0470.405/25 - FULL COLLECTOR SET

Zenith - 02.0470.405/25 · $4,250
This is an original Zenith El Primero Flyback Chronograph designed for French military aviation, featuring a matte black dial and a 40MM stainless case.

  • Condition: Very good condition, with wear throughout
  • Dial: matte black dial with clean chronograph layout and lume
  • Case: 40MM diameter stainless steel case in unpolished condition
  • Bracelet: original stainless Zenith bracelet with double butterfly clasp, fits up to 7 inches
Posted at
May 4, 2026, 8:41 PM
Active
[WTS] INSANE Ultra Rare Zenith El Primero Tourbillon Chronograph in 18K White Gold - Collector Set Just 50 Made!

INSANE Ultra Rare Zenith El Primero Tourbillon Chronograph in 18K White Gold - Collector Set Just 50 Made!

The Zenith El Primero is a legendary chronograph featuring a tourbillon, a limited edition of just 50 made in full 18 karat white gold. It comes with a beautiful collector set and an appraisal showing a value of six figures.

  • Condition: Really clean condition, minimal wear throughout
  • Case Diameter: 45mm
  • Movement: El Primero automatic chronograph cal 4005
Posted at
May 3, 2026, 10:49 PM
Active