Zenith El Primero Chronomaster Open Stainless Steel / Black / Bracelet

Reference 03.3300.3604/21.M3300

About this watch

The Zenith Chronomaster Open is a stunning timepiece that perfectly marries style and function. From its rich heritage and reliable movement to its elegant design, it ticks all the boxes for anyone in search of a luxury watch. The round stainless steel case, measuring 39.50 mm, strikes the perfect balance between presence and wearability. The sunburst black dial adds a touch of depth, catching the light in a way that makes it utterly mesmerizing. The chronograph feature is where this watch truly shines, with its column wheel mechanism allowing for seamless starting, stopping, and resetting. With its 1/10th of a second automatic chronograph movement, this watch is a testament to Zenith's commitment to precision and innovation.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Zenith caliber El Primero 3604 movement
  • Stainless steel case with 39.50 mm diameter
  • Sapphire crystal glass for durability
  • 100 m water resistance for versatility
  • 60 hour power reserve for reliability
  • Column wheel chronograph mechanism for precision
  • Open base plate and bridges for transparency

Specifications

Brand
Zenith
Family
El Primero
Model
Chronomaster Open Stainless Steel / Black / Bracelet
Reference
03.3300.3604/21.M3300
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] Lady Zenith Chronomaster El Primero Factory Diamond Bezel Blue Dial 16.2150.400

Lady Zenith Chronomaster El Primero Factory Diamond Bezel Blue Dial 16.2150.400

Zenith - 16.2150.400 · $4,850
A Lady Zenith Chronomaster El Primero with a blue dial, diamond bezel, and 38mm stainless steel case.

  • Condition: Has some scratches on case and slight indication on side of bezel
  • Case diameter: 38mm
  • Material: Stainless Steel
  • Band type: Blue leather strap
Posted at
Apr 30, 2025, 7:57 PM
Active
Zenith El Primero Chronomaster Grande Date Moonphase 45mm Full Set

Zenith El Primero Chronomaster Grande Date Moonphase 45mm Full Set

Zenith - 03.2530.4047 · $7,250.007
A Zenith El Primero Chronomaster Grande Date Moonphase watch from 2018, featuring a 45mm case and a complete set including double boxed packaging, warranty card, and booklets.

  • Condition: Preowned - Excellent preowned condition with minor wear in form of light scratches
  • Case Size: 45mm diameter
  • Movement Condition: healthy movement
Posted at
Apr 29, 2025, 6:57 PM
Active
[WTS] Zenith Chronomaster Sport El Primero Black Dial 03.3100.3600 / Full Set

Zenith Chronomaster Sport El Primero Black Dial 03.3100.3600 / Full Set

41mm Zenith Chronomaster Sport with black dial and El Primero 3600 movement, water resistant to 100m.

  • Condition: running perfectly, minor wear on bracelet and crystal is clear with no scratches
  • Movement: Zenith El Primero 3600
  • Water Resistance: 100m
  • Power Reserve: 60hr
Posted at
Apr 29, 2025, 1:40 PM
Active
Zenith El Primero Winsor Annual Calendar Ref. 03.2070.4054 / 22.C708

Zenith El Primero Winsor Annual Calendar Ref. 03.2070.4054 / 22.C708

This Zenith El Primero Winsor Annual Calendar is a high-end watch that functions perfectly and comes with all original accessories.

  • Condition: Excellent
  • Diameter: 42mm
  • Bezel: Steel
  • Bracelet: Leather
Posted at
Apr 28, 2025, 8:26 PM
Active
2018 ZENITH El Primero Chronomaster Full Open 51.2081.400 Full Set Excellent Men

2018 ZENITH El Primero Chronomaster Full Open 51.2081.400 Full Set Excellent Men

Zenith - 51.2081.400 · $8,797.009
The Zenith El Primero Full Open Chronomaster is a stunning timepiece that showcases intricate craftsmanship and innovative design, making it a must-have for any serious watch collector.

  • Condition: Excellent
  • Case size: 42mm diameter
  • Bracelet options: Original brown leather strap and Original Zenith blue rubber strap
  • Movement: Automatic El Primero chronograph with 36,000 vibrations per hour
Posted at
Apr 28, 2025, 4:48 PM
Active
>>REDUCED FURTHER<< ZENITH DEFY EL PRIMERO CHRONOGRAPH LAND ROVER LIMITED EDITION

>>REDUCED FURTHER<< ZENITH DEFY EL PRIMERO CHRONOGRAPH LAND ROVER LIMITED EDITION

Zenith - 97.9000.9004/01.R787 · $6,850.007
The Zenith Defy El Primero 21 Land Rover Limited Edition is a 44mm titanium watch featuring an in-house movement that measures time to 1/100 second, with a dark gray dial and orange accents.

  • Condition: MINT
  • Case material: bead blasted titanium
  • Case diameter: 44mm
  • Movement type: in house El Primero movement
Posted at
Apr 27, 2025, 6:42 PM
Active
Zenith Defy El Primero 21 44MM Skeleton Dial Rubber Strap (49.9000.9004/78.R782)

Zenith Defy El Primero 21 44MM Skeleton Dial Rubber Strap (49.9000.9004/78.R782)

Zenith - 49.9000.9004/78.R782 · $7,800.008
A well-crafted chronograph that balances technical innovation with a contemporary design, featuring a skeleton dial and 1/100th of a second chronograph.

  • Condition: Excellent
  • Case material: Black Ceramic
  • Band material: Rubber
  • Water resistance: 100 meters (330 feet)
Posted at
Apr 26, 2025, 12:38 AM
Active
[WTS] Zenith El Primero 38mm Original Chronomaster Chronograph ref 03.3200.3600

Zenith El Primero 38mm Original Chronomaster Chronograph ref 03.3200.3600

Zenith - 03.3200.3600 · $4,999
This is a 38mm Zenith El Primero chronograph with a tri-colored panda dial and a 36,000 VpH movement.

  • Condition: Excellent
  • Movement Frequency: 5 Hz
  • Case Size: 38mm
Posted at
Apr 25, 2025, 4:15 PM
Active
WTS Zenith Defy El Primero 21 Blue Skeleton Dual Escapement Chronograph 44mm Titanium Complete 2018

WTS Zenith Defy El Primero 21 Blue Skeleton Dual Escapement Chronograph 44mm Titanium Complete 2018

Zenith - 95.9002.9004/78.R584 · $5,950.006
The Zenith Defy El-Primero 21 is a Dual Escapement Chronograph Skeletonized watch with a 44mm Titanium Case, dated August 2018. It features the fastest and most precise manufacture chronograph movement in production, operating at a rate of 50Hz.

  • Condition: Mint Condition
  • Case size: 44mm
  • Movement frequency: 50Hz
  • Accuracy: 1/100th of a second
Posted at
Apr 24, 2025, 1:16 PM
Active