Zenith El Primero Chronomaster Open Stainless Steel / Silver / Rubber

Reference 03.3300.3604/69.C823

About this watch

The Zenith Chronomaster Open 03.3300.3604/69.C823 is a masterpiece of horology, showcasing the brand's dedication to precision and luxury. This stunning timepiece features a round case crafted from high-quality stainless steel, boasting a diameter of 39.50 mm. The sunburst finish on the silver dial catches the light beautifully, giving it a dynamic and eye-catching appearance. One of the standout features is the open dial, providing a window into the intricate workings of the movement. The stick and dot indexes add a touch of elegance, while the stick hands are designed for easy readability. Comfort is key when it comes to wearing a watch, and Zenith doesn't disappoint with its rubber strap, which adds a sporty touch and ensures durability and comfort. The El Primero 3604 automatic chronograph movement boasts high precision and reliability, operating at 5Hz and measuring time with a precision of 1/10th of a second. With a power reserve of 60 hours, you can confidently wear it without worrying about winding it daily. Certified as a chronometer, this watch will keep time impeccably. The sapphire glass is scratch-resistant and provides a clear view of the dial, while the stainless steel case ensures durability in everyday wear. With a water resistance of 100 meters, this watch is suitable for swimming and snorkeling. The combination of Swiss craftsmanship, innovative movement, and timeless design makes this watch a worthy addition to any collection.
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Key Features

  • Zenith caliber El Primero 3604 automatic chronograph movement
  • Stainless Steel case with sapphire glass
  • Water Resistance: 100 meters
  • Power Reserve: 60 hours
  • 5Hz frequency for precise timekeeping
  • Certified Chronometer for accurate timekeeping

Specifications

Brand
Zenith
Family
El Primero
Model
Chronomaster Open Stainless Steel / Silver / Rubber
Reference
03.3300.3604/69.C823
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 Defy Extreme Diver Titanium Ref 95.9601.3620/51.I301 AKA A FULL ON WRIST PARTY!

Zenith El Primero Defy Extreme Diver Titanium Ref 95.9601.3620/51.I301 AKA A FULL ON WRIST PARTY!

This is a Zenith El Primero Defy Extreme Diver Titanium watch with a beautiful blue starry sunray pattern dial and a 42.5MM titanium case.

  • Condition: Pre-owned, mint condition
  • Movement: El Primero automatic cal 3620 CS
  • Case size: 42.5mm diameter
  • Straps: Original blue rubber strap and oversized cloth dive strap with Zenith buckle
Posted at
Jan 15, 2026, 8:35 PM
Active
[WTS] RARE Zenith El Primero Chronograph 18K White Gold Yoshida Edition - JUST 15 MADE - Collector Set!

RARE Zenith El Primero Chronograph 18K White Gold Yoshida Edition - JUST 15 MADE - Collector Set!

A rare Zenith El Primero Chronograph in solid 18K white gold, produced for the Yoshida store in Tokyo and limited to just 15 examples.

  • Condition: Beautiful condition, some minor wear on gold bezel and case sides
  • Case size: 40MM
  • Movement type: Cal 3600 automatic movement
Posted at
Jan 14, 2026, 8:40 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
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 with a 42mm stainless steel case, featuring a Caliber Zenith El Primero 4061 movement and a date of manufacture in October 2014.

  • Condition: Mint Condition
  • Case diameter: 42mm
  • Movement frequency: 36,000 VPH
Posted at
Mar 25, 2025, 12:45 PM
Active
Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete

Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete

This is a Zenith El Primero Chronomaster Open Heart chronograph watch, featuring a 42mm stainless steel case and powered by the Caliber Zenith El Primero 4061 movement.

  • Condition: Mint Condition with light hairline scratches
  • Case diameter: 42mm
  • Movement frequency: 36,000 VPH
  • Power reserve: 50 hour PR
Posted at
Mar 4, 2025, 12:09 PM
Active
Zenith Class Sport El Primero Chronograph Black Dial Hand Wound  02.0500.420

Zenith Class Sport El Primero Chronograph Black Dial Hand Wound 02.0500.420

Zenith - 02.0500.420 · $3,120
This Zenith Class Sport El Primero Chronograph is a hand-wound mechanical watch with a black dial and stainless steel case.

  • Condition: 95%
  • Size: 39mm diameter
  • Function: Chronograph ; date
Posted at
Mar 2, 2025, 5:41 AM
Active
Zenith Grande Class Open El Primero Chrono Power Reserve 03.0520.4021, Black B&P

Zenith Grande Class Open El Primero Chrono Power Reserve 03.0520.4021, Black B&P

Zenith - 03.0520.4021 · $3,595
This Zenith Grande Class Open El Primero Chronograph features an in-house movement, chronograph function, power reserve indicator, and is water resistant to 50m.

  • Condition: Good condition, some wear on the strap and a small blemish on the sapphire crystal
  • Movement: Automatic, in-house Zenith 4021H
  • Base movement: Zenith El Primero 400
  • Alternations per hour: 36,000
Posted at
Mar 1, 2025, 2:41 AM
Active