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Zenith

Zenith Chronomaster Open Stainless Steel / Silver / Bracelet 03.3300.3604/69.M3300

The Zenith Chronomaster Open Stainless Steel / Silver / Bracelet (reference 03.3300.3604/69.M3300) is a 39.5 mm stainless steel watch with a silver dial. It runs on the caliber El Primero 3604 and is water resistant to 100 m. It was introduced in 2022.

Specifications

Case

Reference
03.3300.3604/69.M3300
Collection
Chronomaster Open
Case size
39.5 mm
Case material
Stainless steel
Crystal
Sapphire
Water resistance
100 m
Bracelet / strap
Bracelet

Dial and bezel

Dial
Silver

Movement

Caliber
El Primero 3604
Functions
Chronograph (column wheel), Small seconds

Production

Production
2022 – today

Dial versions

This reference was made with these dials and finishes.

  • 03.3300.3604/69.M3300 Silver

    Silver

How it compares within the Chronomaster Open family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
03.3300.3604/69.M3300 (This watch)39.5 mmStainless steelSilverEl Primero 36042022–
03.3300.3604/21.C822—Stainless steelBlack——
03.3300.3604/21.M3300—Stainless steelBlack——
03.3300.3604/51.M3300—Stainless steelBlue——
03.3300.3604/69.C823—Stainless steelSilver——
03.3301.3604/51.M3330—Stainless steelBlue——
18.3300.3604/69.C922—Rose goldSilver——
18.3301.3604/72.C870—Rose goldRose——

About the Chronomaster Open family

The Chronomaster Open is Zenith's chronograph with an opening in the dial that shows the El Primero's escape wheel and balance at work. The 2022 generation uses the El Primero 3604, based on the 3600 with timing to a tenth of a second.

The catalog lists steel and rose gold references with several dial colours. Dealers identify the generation and dial from the reference and check the bracelet or strap.

Quick answers

What size is the Zenith Chronomaster Open Stainless Steel / Silver / Bracelet 03.3300.3604/69.M3300?
The Zenith Chronomaster Open Stainless Steel / Silver / Bracelet 03.3300.3604/69.M3300 has a 39.5 mm case.
What movement does the Zenith Chronomaster Open Stainless Steel / Silver / Bracelet 03.3300.3604/69.M3300 use?
It uses the caliber El Primero 3604.
How water resistant is the Zenith Chronomaster Open Stainless Steel / Silver / Bracelet 03.3300.3604/69.M3300?
It is water resistant to 100 metres.
When did the Zenith Chronomaster Open Stainless Steel / Silver / Bracelet 03.3300.3604/69.M3300 come out?
It was introduced in 2022.
What is the Zenith Chronomaster Open Stainless Steel / Silver / Bracelet 03.3300.3604/69.M3300 made of?
The case is stainless steel. Bracelet or strap: Bracelet.

Catalog facts checked October 2026.