Zenith El Primero Chronomaster Open Stainless Steel / Black / Bracelet

Reference 03.3300.3604/21.M3300

Zenith Chronomaster Open Stainless Steel / Black / Bracelet

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.

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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

Zenith - 49.9010.9004/01.R947 Defy El Primero 21 Chroma 🎨 limited to 200 pieces

Zenith - 49.9010.9004/01.R947 · $10,500

This listing is for a Zenith Defy El Primero 21 Chroma limited to 200 pieces, which is a complete set from 2022.

Condition: Mint condition
Year: 2022
Quantity Produced: limited to 200 pieces

Posted at

Feb 5, 2026, 1:22 PM

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2017 Zenith Chronomaster El Primero "Open Heart" 03.2040.4061/23.C496 - Box/Papers, Two Straps, Excellent Shape

Zenith - 03.2040.4061/23.C496 · $5,999

The Zenith Chronomaster El Primero 'Open Heart' is a striking example of an open heart masterpiece, highlighting the legendary El Primero movement through an open-heart aperture on the dial.

Condition: Excellent pre-owned condition
Case Size: 42mm
Movement Power Reserve: ~50-hour
Water Resistance: 100m depth rating

Posted at

Feb 5, 2026, 12:37 AM

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Zenith El Primero Chronograph - Serviced w/Extras

Zenith - 20-0010.420 · $3,350

A Zenith El Primero Chronograph with a gold filled case and 38mm diameter, featuring the Cal.420 movement.

Case diameter: 38mm
Lug width: 20mm
Lug to lug: 45mm

Posted at

Feb 2, 2026, 10:26 AM

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Zenith Defy 21 Chroma El Primero (2022) – Ceramic – Full Set – Limited 200 €6950

Zenith - 49.9010.9004/01.R947 · $6,950

A 2022 Zenith Defy 21 Chroma El Primero with a ceramic case and limited to only 200 pieces worldwide. It's powered by the legendary El Primero chronograph movement and features an original retail price north of €14,000.

Condition: Excellent with minor cosmetic wear on the case near the lugs
Case material: Ceramic
Movement type: El Primero chronograph
Water resistance depth: 100m

Posted at

Feb 2, 2026, 6:19 AM

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[US] Zenith El Primero Chronomaster Sport - Meteorite Dial - 42mm - 03.3120.3600/76.M3100 - Full Set

Zenith - 03.3120.3600/76.M3100 · $13,300

Up for sale is a Zenith El Primero Chronomaster Sport - Meteorite Dial - 42mm Watch functions perfectly mechanically, without issue.

Condition: Fantastic condition with minor hairlines
Water Resistance: 30m
Case Size: 42mm diameter
Band Material: bracelet

Posted at

Jan 27, 2026, 8:00 AM

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

Zenith - 03.3200.3600/21.C903 · $7,150

A brand new Zenith Chronomaster Original Reverse Panda El Primero chronograph, discontinued by the manufacturer, still in its protective stickers and under full warranty.

Condition: Brand new, never used
Warranty: 2-year warranty from Zenith
Strap: Original leather strap with deployant clasp

Posted at

Jan 25, 2026, 4:06 PM

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Zenith El Primero Defy Extreme Diver AKA PURE WRIST JOY Ref 95.9601.3620/51.I301 FULL SET

Zenith - 95.9601.3620/51.I301 · $7,950

A Zenith El Primero Defy Extreme Diver with a unique blue starry sunray pattern dial and a titanium case.

Condition: Pre-owned, barely over a year old
Case size: 42.5MM diameter
Movement: El Primero cal 3620 CS automatic movement

Posted at

Jan 24, 2026, 7:53 PM

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Zenith El Primero Chronomaster Revival Panda 03.A384.400/21.C815

Zenith - 03.A384.400/21.C815 · $5,999

This is a 37mm Chronomaster Revival Panda, a limited edition model from Zenith's El Primero series, featuring a classic panda dial.

Condition: preowned clean condition with hairline scratches throughout
Crystal condition: may contain marks under strong magnification
Strap condition: worn
Case size: 37mm

Posted at

Jan 23, 2026, 6:51 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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