Zenith El Primero Chronomaster Open Stainless Steel / Black / Rubber

Reference 03.3300.3604/21.C822

About this watch

The Zenith Chronomaster Open is a masterpiece of luxury watchmaking, combining stunning design with exceptional technical prowess. This stainless steel timepiece boasts a 39.50mm case that strikes a perfect balance between robustness and elegance, while the sunburst black dial provides an excellent backdrop for the luminescent stick and dot indexes. The El Primero 3604 movement is a high-frequency automatic chronograph that measures time with incredible precision, featuring a frequency of 36,000 vibrations per hour and a power reserve of 60 hours. With its modified design, open base plate and bridges create a stunning view of the movement, showcasing Zenith's mastery in timekeeping. The Chronomaster Open is not just a timepiece, but a conversation starter, a piece of history, and a testament to the art of Swiss watchmaking.
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Key Features

  • 39.50mm stainless steel case
  • Sunburst black dial with luminescent indexes
  • El Primero 3604 high-frequency automatic chronograph movement
  • Frequency: 36,000 vibrations per hour
  • Power reserve: 60 hours
  • Modified design with open base plate and bridges
  • Sapphire crystal glass
  • Water resistance: 100m

Specifications

Brand
Zenith
Family
El Primero
Model
Chronomaster Open Stainless Steel / Black / Rubber
Reference
03.3300.3604/21.C822
Movement Features
  • Hours, Minutes, Small Seconds
  • Chronograph, Column wheel
Case
Stainless Steel 39.5mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] 1970's Movado Zenith El Primero Mens Vintage Chronograph 01.0180.434 with Papers

1970's Movado Zenith El Primero Mens Vintage Chronograph 01.0180.434 with Papers

Movado Zenith - 01.0180.434 · $3,950
A 1970s Movado Zenith El Primero Mens Vintage Chronograph featuring a stainless steel case, original silver dial, and automatic chronograph movement. It comes with papers, including a zenith manual and warranty card.

  • Condition: Very nice preowned condition with light scratches and wear, minor crystal chips, patina on hands and dial
  • Case material: Stainless Steel
  • Case dimensions: 38mm diameter
  • Bezel material: Stainless Steel
Posted at
Jun 13, 2025, 7:42 PM
Active
>>FINAL PRICE<< ZENITH DEFY EL PRIMERO LAND ROVER LIMITED EDITION

>>FINAL PRICE<< ZENITH DEFY EL PRIMERO LAND ROVER LIMITED EDITION

Zenith - 97.9000.9004/01.R787 · $6,750.007
The Zenith Defy El Primero 21 Land Rover Limited Edition is a unique timepiece that features a bead blasted titanium case and a dark gray dial with orange accents. It boasts the new El Primero in-house movement, which measures time to 1/100 second, and comes with a range of accessories.

  • Condition: MINT
  • Case diameter: 44mm
  • Movement: El Primero in-house movement
Posted at
Jun 13, 2025, 4:48 PM
Active
Zenith El Primero 03.2522.400

Zenith El Primero 03.2522.400

Zenith - 03.2522.400 · $3,800.004
A Zenith El Primero Skeleton in 45mm size, functioning as it should with the exception of a slight reset issue.

  • Condition: Pre-owned with some functional issues (chronograph resets slightly before 12)
  • Case Size: 45mm diameter
  • Full Kit: yes
Posted at
Jun 10, 2025, 5:39 PM
Active
[WTS][US] Zenith Defy El Primero 21 Ultra Blue - 44mm - 97.9001.9004/81.R946 - Full Set

[US] Zenith Defy El Primero 21 Ultra Blue - 44mm - 97.9001.9004/81.R946 - Full Set

The Zenith Defy El Primero 21 Ultra Blue is a 44mm watch that functions perfectly mechanically.

  • Condition: Fantastic condition, no hairlines on clasp or case
  • Case size: 44mm diameter
Posted at
Jun 9, 2025, 7:58 AM
Active
[WTS] Zenith Defy Skyline El Primero Chronograph 42mm Silver Dial 03.9500.3600 Full Set

Zenith Defy Skyline El Primero Chronograph 42mm Silver Dial 03.9500.3600 Full Set

Zenith - 03.9500.3600 · $7,999
42mm Zenith Defy Skyline El Primero Chronograph with silver dial, stainless steel case, and 1/10th of a second chronograph function.

  • Condition: has some light scratches on bezel and bracelet
  • Case size: 42mm
  • Dial color: silver
Posted at
Jun 4, 2025, 9:29 PM
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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
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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