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
![[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

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

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

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

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