Zenith El Primero Chronomaster Open Rose Gold / Silver / Calf

Reference 18.3300.3604/69.C922

About this watch

The Zenith Chronomaster Open Rose Gold / Silver / Calf is a prime example of luxury watchmaking, combining elegant design with groundbreaking movement technology. This stunning timepiece features a rose gold case, silver sunburst dial, and calf leather strap, creating a sophisticated look that's perfect for formal occasions or casual outings. The round case measures 39.50 mm in diameter, ensuring it suits various wrist sizes. A sapphire crystal protects the dial, while an open case back allows you to admire the intricate El Primero 3604 movement within. This automatic chronograph movement operates at a remarkable frequency of 36,000 vibrations per hour, providing precision that few watches can match. With a central chronograph hand completing one full rotation every 10 seconds, you can measure elapsed time with remarkable accuracy. The calf leather strap adds a luxurious touch while ensuring comfort on the wrist. Certified as a chronometer, this watch has passed rigorous testing for accuracy and performance, making it perfect for those who value punctuality. With a power reserve of 60 hours, you can leave your watch unworn over the weekend and still find it ticking away on Monday morning.

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Key Features

Automatic Chronograph Movement with 36,000 VPH Frequency
Rose Gold Case with Sapphire Crystal
Silver Sunburst Dial with Stick and Dot Indexes
Calf Leather Strap for Comfort and Durability
1/10th of a Second Chronograph Functionality
100 Meter Water Resistance
60 Hour Power Reserve

Specifications

Brand

Zenith

Family

El Primero

Model

Chronomaster Open Rose Gold / Silver / Calf

Reference

18.3300.3604/69.C922

Movement Features

Hours, Minutes, Small Seconds
Chronograph, Column wheel

Case

Rose Gold 39.5mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

100

Current Listings

Zenith El Primero Chronomaster Open Gold Bezel/Two-Tone Complete Set 2022

Zenith - 51.2080.4061/69.C494 · $6,996

This Zenith Chronomaster El Primero Open features a two-tone stainless steel and 18k rose gold design, silver sunray dial, open-heart display, and blue chronograph accents.

Movement: El Primero 4061 column-wheel chronograph
Material: Stainless Steel, 18k Rose Gold
Dial: Silver sunray

Posted at

May 17, 2026, 6:24 PM

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Zenith El Primero Vintage Rainbow Chronograph White Dial 40mm Box & Papers

Zenith - El Primero Rainbow Chronograph · $3,950

The Zenith El Primero Rainbow Chronograph is a distinctive and historically significant chronograph that showcases the legendary El Primero movement in a bold and sporty design.

Condition: Great original condition for its age with typical signs of wear in the metals and fine hairlines in the crystal visible in harsh light under certain angles.
Size: 40mm diameter
Water resistance: 100m depth rating
Movement power reserve: ~50 hours

Posted at

May 17, 2026, 2:14 PM

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

Zenith - Chronomaster El Primero Power Reserve Open Heart · $3,295

A Zenith Chronomaster with an El Primero movement, power reserve, and open heart display is being sold.

Straps: OEM Strap
Clasp: OEM Deployant Clasp

Posted at

May 16, 2026, 1:18 PM

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

Zenith - 03.2240.4069

Zenith Tipo CP-2 Chronograph 03.2240.4069 is an underrated El Primero beast, one of only 641 pieces produced out of 1000.

Condition: Underrated

Posted at

May 15, 2026, 9:21 PM

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Brand New 2025 Zenith Chronomaster Original El Primero Chronograph Reverse Panda | 03.3200.3600/21.C903 | Price reduced

Zenith - 03.3200.3600/21.C903 · $6,800

A brand new, discontinued Zenith Chronomaster Original Reverse Panda chronograph watch, still in its original packaging and with a full 2-year warranty.

Condition: Brand new, never used
Material: leather
Strap size: unknown
Warranty duration: 2 years

Posted at

May 14, 2026, 11:52 AM

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Zenith Defy El Primero 21 • Titanium • Skeleton • Full Set • Serviced

Zenith - Defy El Primero 21

This listing is about a Zenith Defy El Primero 21 watch with a titanium case, skeleton design, and full set. It has been serviced.

Condition: Full set
Material: titanium
Movement: El Primero 21

Posted at

May 14, 2026, 10:03 AM

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

Zenith - 03.3100.3600/69.M3100 · $7,500

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

Condition: Fantastic with few hairlines on clasp, case, and bracelet
Case size: 41mm diameter

Posted at

May 14, 2026, 7:25 AM

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Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete

Zenith - 03.2040.4061/69.C496 · $4,950

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 - 03.2170.4613/01.M2170 · $4,000

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

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