Zenith El Primero Chronomaster Open Stainless Steel / Black / Rubber
Reference 03.3300.3604/21.C822
About this watch
The Zenith Chronomaster Open is a masterpiece of luxury watchmaking, combining stunning design with exceptional technical prowess. This stainless steel timepiece boasts a 39.50mm case that strikes a perfect balance between robustness and elegance, while the sunburst black dial provides an excellent backdrop for the luminescent stick and dot indexes. The El Primero 3604 movement is a high-frequency automatic chronograph that measures time with incredible precision, featuring a frequency of 36,000 vibrations per hour and a power reserve of 60 hours. With its modified design, open base plate and bridges create a stunning view of the movement, showcasing Zenith's mastery in timekeeping. The Chronomaster Open is not just a timepiece, but a conversation starter, a piece of history, and a testament to the art of Swiss watchmaking.
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Key Features
- 39.50mm stainless steel case
- Sunburst black dial with luminescent indexes
- El Primero 3604 high-frequency automatic chronograph movement
- Frequency: 36,000 vibrations per hour
- Power reserve: 60 hours
- Modified design with open base plate and bridges
- Sapphire crystal glass
- Water resistance: 100m
Specifications
- Brand
- Zenith
- Family
- El Primero
- Model
- Chronomaster Open Stainless Steel / Black / Rubber
- Reference
- 03.3300.3604/21.C822
- Movement Features
-
- Hours, Minutes, Small Seconds
- Chronograph, Column wheel
- Case
- Stainless Steel 39.5mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 100
Current Listings

>>REDUCED FURTHER<< ZENITH DEFY EL PRIMERO CHRONOGRAPH LAND ROVER LIMITED EDITION
The Zenith Defy El Primero 21 Land Rover Limited Edition is a 44mm titanium watch featuring an in-house movement that measures time to 1/100 second, with a dark gray dial and orange accents.
- Condition: MINT
- Case material: bead blasted titanium
- Case diameter: 44mm
- Movement type: in house El Primero movement
Zenith Defy El Primero 21 44MM Skeleton Dial Rubber Strap (49.9000.9004/78.R782)
A well-crafted chronograph that balances technical innovation with a contemporary design, featuring a skeleton dial and 1/100th of a second chronograph.
- Condition: Excellent
- Case material: Black Ceramic
- Band material: Rubber
- Water resistance: 100 meters (330 feet)
![[WTS] Zenith El Primero 38mm Original Chronomaster Chronograph ref 03.3200.3600](https://preview.redd.it/pc1qkw41h1xe1.jpeg?auto=webp&s=80f8da309ae358866c5390744bf98be14b8b122c)
Zenith El Primero 38mm Original Chronomaster Chronograph ref 03.3200.3600
This is a 38mm Zenith El Primero chronograph with a tri-colored panda dial and a 36,000 VpH movement.
- Condition: Excellent
- Movement Frequency: 5 Hz
- Case Size: 38mm
WTS Zenith Defy El Primero 21 Blue Skeleton Dual Escapement Chronograph 44mm Titanium Complete 2018
The Zenith Defy El-Primero 21 is a Dual Escapement Chronograph Skeletonized watch with a 44mm Titanium Case, dated August 2018. It features the fastest and most precise manufacture chronograph movement in production, operating at a rate of 50Hz.
- Condition: Mint Condition
- Case size: 44mm
- Movement frequency: 50Hz
- Accuracy: 1/100th of a second
![[WTS] Zenith Chronomaster El Primero 38mm 2022 Ref 03.3600.3200 Panda Dial $5,500](https://preview.redd.it/vic9mrqfshwe1.jpg?width=640&crop=smart&auto=webp&s=2be4626ea1d321cead7cd38d9a4b6a2dd572c4cd)
Zenith Chronomaster El Primero 38mm 2022 Ref 03.3600.3200 Panda Dial $5,500
This Zenith Chronomaster El Primero is a versatile watch with a panda dial, serviced in 2023 to remove magnetization and polished to mint condition.
- Condition: Pre-owned in great overall shape, with light scratches on the bracelet.
- Diameter: 38mm
- Year: 2022
- Features: Panda Dial, El Primero Movement
![[WTS] 2020 Zenith Chronomaster El Primero 42mm Tri Color Silver Dial 03.2040.400 Full Set](https://preview.redd.it/7qk9zdbpcgwe1.jpg?width=640&crop=smart&auto=webp&s=1d9f1995863ec1c6cfb8dda05d49df7f0df64545)
2020 Zenith Chronomaster El Primero 42mm Tri Color Silver Dial 03.2040.400 Full Set
2020 Zenith Chronomaster El Primero, a highly iconic chronograph with a silver tri-color dial.
- Condition: Has at least one small mark on AR coating on crystal, scratches on case and bracelet
- Case material: Stainless Steel
- Case dimensions: 42mm diameter
- Bezel: Stainless Steel
![[WTS] Zenith El Primero Original Chronomaster 38mm 03.3200.3600](https://preview.redd.it/4wzccx1112we1.jpg?width=640&crop=smart&auto=webp&s=627cb64bff7c4456d6e8c2afb9d75fa399de25d2)
Zenith El Primero Original Chronomaster 38mm 03.3200.3600
A Zenith El Primero 38mm Chronomaster in good condition, complete with its original box and papers.
- Condition: Very Good (Preowned)
- Case Size: 38mm diameter
- Wrist Size: 7.25 inches
![[WTS] Zenith El Primero Rainbow Flyback Chronograph – Ref. 01/02.0470.405](https://preview.redd.it/1f2t1sls9nve1.jpg?width=640&crop=smart&auto=webp&s=0053911ae17f5270f3acd7e1f9b2e91081a5f00e)
Zenith El Primero Rainbow Flyback Chronograph – Ref. 01/02.0470.405
The Zenith El Primero Rainbow Flyback is an accurate high-performance chronograph featuring a high-beat movement, quickset date mechanism, and a full-body winding rotor. It is one of the most robust, reliable, and accurate automatic chronographs ever produced.
- Condition: very good condition, one ding in the bezel near the pip
- Era: Late 1990s
- Case size: 40mm diameter
- Lug-to-lug: 46.5mm length
![[WTS] Zenith Defy El Primero 21 Skeleton Dial Rubber Strap](https://preview.redd.it/4kzj0pqj6mve1.jpg?width=640&crop=smart&auto=webp&s=653d76d634aaf0c5c1f5de0bcd65b2499bb8f5b6)
Zenith Defy El Primero 21 Skeleton Dial Rubber Strap
This Zenith Defy El Primero 21 features a skeleton dial and comes with a rubber strap. It's a lightweight, comfortable watch that's sure to get compliments.
- Condition: Excellent
- Size: 44mm diameter
- Contents: Full set
- Warranty: 12 month warranty on the watch movement