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 El Primero New Vintage 1969 Titanium Skeleton Chronograph - 40th Anniversary Limited Edition Ref.96.1969.469/77.C683 | Papers & Extra Strap](https://preview.redd.it/ws16jpx6c6wf1.jpg?width=640&crop=smart&auto=webp&s=41bcfff150797070cd840fa30f202e998760017d)
Zenith El Primero New Vintage 1969 Titanium Skeleton Chronograph - 40th Anniversary Limited Edition Ref.96.1969.469/77.C683 | Papers & Extra Strap
The Zenith El Primero New Vintage 1969 Titanium Skeleton Chronograph is a limited edition watch that pays tribute to the original A384 case design, now executed in lightweight titanium.
- Condition: Excellent overall
- Movement Frequency: 36,000 vph
- Case Material: Titanium
- Case Size: 40 mm diameter
![[WTS] Zenith El Primero New Vintage 1969 Titanium Skeleton Chronograph – 40th Anniversary Limited Edition| Ref. 96.1969.469/77.C683 | Papers & Extra Strap](https://preview.redd.it/am6ht0k9s5wf1.jpg?width=640&crop=smart&auto=webp&s=9733e8bd5637c89a1826904e297475a0964a945a)
Zenith El Primero New Vintage 1969 Titanium Skeleton Chronograph – 40th Anniversary Limited Edition| Ref. 96.1969.469/77.C683 | Papers & Extra Strap
This Zenith El Primero New Vintage 1969 Titanium Skeleton Chronograph is a limited edition model released to celebrate the 40th anniversary of the legendary El Primero. The watch features a partially skeletonized dial, a lightweight titanium case, and a modern take on the original A384 case design.
- Condition: Excellent overall
- Year: 2014
- Case material: Titanium
- Diameter: 40mm
![[WTS] Zenith El Primero Limited Edition 1/10 of a Second (Striking Tenth) 03.2041.4052 $7500](https://preview.redd.it/6b5se0h1m5wf1.jpg?width=640&crop=smart&auto=webp&s=63a64445c12517929b416b4f7d87ef5b42335292)
Zenith El Primero Limited Edition 1/10 of a Second (Striking Tenth) 03.2041.4052 $7500
Limited edition Zenith El Primero watch with a custom Dangerous9 strap and original metal bracelet, comes with full set of boxes and papers.
- Condition: Excellent, due to being a safe queen
- Original owner: true
- Custom strap material: leather (brand: Dangerous9)
- Bracelet condition: near flawless
![[WTS] Zenith El Primero Chronomaster Original “1/10” Silver Dial 38mm](https://preview.redd.it/r7h3f6xmaxvf1.jpg?width=640&crop=smart&auto=webp&s=886a8e2d0a2e6bcea9da09dfd1950dc89d66cc12)
Zenith El Primero Chronomaster Original “1/10” Silver Dial 38mm
The Zenith Chronomaster Original is a reborn version of an iconic chronograph, featuring the modern El Primero 3600 movement and a 38mm steel case with exhibition case back.
- Condition: fantastic condition
- Case size: 38mm
- Material: steel

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

Zenith 42mm El Primero Chronomaster Open Heart Stainless Steel Complete
This is a Zenith El Primero Chronomaster Open Heart chronograph watch, featuring a 42mm stainless steel case and powered by the Caliber Zenith El Primero 4061 movement.
- Condition: Mint Condition with light hairline scratches
- Case diameter: 42mm
- Movement frequency: 36,000 VPH
- Power reserve: 50 hour PR