Zenith El Primero Chronomaster Open Stainless Steel / Silver / Bracelet

Reference 03.3300.3604/69.M3300

About this watch

When it comes to luxury watches, few brands command respect like Zenith. Renowned for its precision and craftsmanship, Zenith has introduced the Chronomaster Open Stainless Steel / Silver / Bracelet (Model: 03.3300.3604/69.M3300). This stunning timepiece is not just a watch; it's a statement. Let’s dive into the intricacies of this remarkable watch and see what makes it a standout in the world of horology. The Zenith Chronomaster Open boasts a beautifully crafted stainless steel case with a diameter of 39.50 mm, striking a perfect balance between presence and wearability. The sunburst finish gives it a striking appearance, reflecting light in a way that catches the eye without being overly flashy. The stainless steel bracelet enhances the watch's elegance while ensuring durability. It feels solid on the wrist, yet comfortable enough for daily wear. The design is both modern and classic, making it versatile enough to pair with various outfits. The dial of this watch is where the magic truly happens. The open heart design allows you to glimpse the inner workings of the watch, showcasing the exquisite craftsmanship of the El Primero movement. The silver color provides a clean and sophisticated look, while the stick and dot indexes add a touch of modernity. The hands are also designed with precision in mind; they’re stick-shaped, ensuring readability while maintaining an elegant aesthetic. The central chronograph hand is particularly noteworthy, making one full turn every 10 seconds, which is a unique feature that adds to the watch's sporty character. What sets the Chronomaster Open apart is its movement. The El Primero 3604 is a modified version of the 3600 that debuted in the CHRONOMASTER Sport. It’s an automatic chronograph that can measure and display time down to the 1/10th of a second. With a frequency of 36,000 vibrations per hour, the 3604 offers a level of precision that is hard to match. The movement features a stop-second mechanism, allowing you to set the time accurately, which is essential for a watch of this caliber. The El Primero 3604 boasts an impressive power reserve of 60 hours. This means you can take it off for a weekend and still find it ticking away when you put it back on. The automatic winding mechanism is efficient, utilizing a lubricant-free silicon escape wheel and pallet lever, which minimizes maintenance and enhances durability. With a water resistance of 100 meters, the Zenith Chronomaster Open is not just a pretty face. It’s built to withstand splashes and even brief swims. Whether you’re caught in a rain shower or enjoying a day at the beach, you can trust this watch to keep ticking without missing a beat.
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Key Features

  • Automatic chronograph movement (El Primero 3604)
  • Stainless steel case with sunburst finish
  • Sapphire crystal glass
  • 100m water resistance
  • 60-hour power reserve
  • Stop-second mechanism for accurate time-setting
  • High-frequency movement with 1/10th of a second chronograph

Specifications

Brand
Zenith
Family
El Primero
Model
Chronomaster Open Stainless Steel / Silver / Bracelet
Reference
03.3300.3604/69.M3300
Movement Features
  • Hours, Minutes, Small Seconds
  • Chronograph, Column wheel
Case
Stainless Steel 39.5mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
100

Current Listings

[WTS] Zenith El Primero Rainbow Flyback Chronograph – Ref. 01/02.0470.405

Zenith El Primero Rainbow Flyback Chronograph – Ref. 01/02.0470.405

Zenith - 01/02.0470.405 · $3,350
The Zenith El Primero Rainbow Flyback is a high-performance chronograph featuring a high-beat movement and flyback function, powered by Zenith's legendary El Primero movement.

  • Condition: Very good overall condition, one call out on the bezel near the pip
  • Case size: 40mm diameter
  • Lug to lug: 46.5mm length
  • Thickness: 12.8mm thickness
Posted at
Feb 21, 2025, 5:08 PM
Active
ZENITH DEFY EL PRIMERO EXTREME DIVER 5 YEAR WARRANTY

ZENITH DEFY EL PRIMERO EXTREME DIVER 5 YEAR WARRANTY

The Zenith Defy El Primero Extreme Diver features a black dial with orange highlights, ceramic bezel, and in-house El Primero movement.

  • Condition: New in box (LNIB)
  • Material: Titanium
  • Diameter: 42mm
  • Water Resistance Depth: 600m
Posted at
Feb 20, 2025, 4:25 PM
Active
ZENITH DEFY EXRTREME DIVER EL PRIMERO 5 YEAR Warranty

ZENITH DEFY EXRTREME DIVER EL PRIMERO 5 YEAR Warranty

The Zenith Defy El Primero Extreme Diver is a high-end diver's watch featuring a black dial with orange highlights, ceramic bezel, and 42mm diameter. It has a water resistance of 600m and comes with multiple straps and quick-change feature.

  • Condition: LNIB (Like New in Box)
  • Case material: Titanium
  • Water resistance: 600m
  • Movement: In-house El Primero movement
Posted at
Feb 20, 2025, 4:22 PM
Active
Zenith Defy El Primero 21 Skeleton Dial Ceramic Mens Watch 49.9000.9004/78.R582

Zenith Defy El Primero 21 Skeleton Dial Ceramic Mens Watch 49.9000.9004/78.R582

The Zenith Defy El Primero 21 is a bold and precise watch with a geometric open-worked dial, powered by a state-of-the-art El Primero 21 chronograph. It features two independent high-frequency escapements beating at 50Hz for the chronograph function and 5Hz for timekeeping, with a 50-hour power reserve.

  • Condition: Excellent+
  • Case material: black ceramic
  • Case size: 44mm diameter
  • Band material: black crocodile/rubber
Posted at
Feb 20, 2025, 2:47 PM
Active
Zenith El Primero Chronomaster Original Panda Ref. 03.3200.3600.21.c903

Zenith El Primero Chronomaster Original Panda Ref. 03.3200.3600.21.c903

The Zenith El Primero Chronomaster Original Panda is a high-end watch with a panda dial design.

  • Boxes: true
  • Books: true
  • Extra strap: true
Posted at
Feb 19, 2025, 10:25 PM
Active
[WTS] [WTS] Zenith El Primero 02.0500.400 Chronograph. Full set and serviced.

[WTS] Zenith El Primero 02.0500.400 Chronograph. Full set and serviced.

Zenith - 02.0500.400 · $3,800
This neo-vintage late 90s/early 2000s Zenith El Primero Chronograph is a full set, including box, papers, and tags. It measures about 39mm and comes on a bracelet.

  • Condition: Excellent
  • Size: 39mm diameter
  • Bracelet: includes additional links and half link
Posted at
Feb 19, 2025, 8:39 PM
Active
[WTS] Concord Impresario Automatic Chronograph – Famed Zenith 'El Primero' Movement on Bracelet

Concord Impresario Automatic Chronograph – Famed Zenith 'El Primero' Movement on Bracelet

Concord - 14.G9.210 · $1,550
A Concord Impresario chronograph with the Zenith 'El Primero' movement and triple calendar functionality, featuring a stylish design.

  • Condition: Excellent
  • Case Size: 38mm
  • Lug Width: 20mm
  • Wrist Size: 6 3/4 inch
Posted at
Feb 19, 2025, 2:55 PM
Active
[WTS] Zenith El Primero Chronomaster 38mm 03.3200.3600/69.C902 ( new / 2024 / box and papers )

Zenith El Primero Chronomaster 38mm 03.3200.3600/69.C902 ( new / 2024 / box and papers )

A Zenith El Primero Chronomaster with a white dial on a leather strap, featuring the original stainless steel case and El Primero movement.

  • Condition: Brand new
  • Case size: 38mm diameter
  • Movement: El Primero Movement
  • Shipping cost international: $150
Posted at
Feb 19, 2025, 1:46 PM
Active
[WTS] Zenith El Primero Chronomaster 03.2520.400/69.C713 - 45mm for Big Wrist or Big Dial Fans - Rare to Find

Zenith El Primero Chronomaster 03.2520.400/69.C713 - 45mm for Big Wrist or Big Dial Fans - Rare to Find

This is a rare model with a short production run, reportedly made for the USA & Australian markets. The 45mm version of this watch is rarely seen for sale, making it a unique opportunity for collectors.

  • Condition: Excellent
  • Case Size: 45mm diameter
  • Dial Color: same as Zenith Chronomaster Sport
Posted at
Feb 18, 2025, 8:38 PM
Active