Zenith El Primero Chronomaster Open Stainless Steel / Blue / Boutique Edition
Reference 03.3300.3604/51.M3300
About this watch
The Zenith Chronomaster Open Stainless Steel / Blue / Boutique Edition is a masterpiece that embodies innovation and tradition. Its stunning blue dial with sunburst finish catches the light beautifully, giving it a dynamic look that changes with your movement. The round stainless steel case measures 39.50 mm in diameter, offering a perfect balance of presence without being overly bulky. The open-heart design allows you to peek into the intricate workings of the watch, making it not just a timekeeper, but a conversation starter. With a water resistance of 100 meters, this watch is built to withstand the elements. At its core lies the Zenith caliber El Primero 3604, an automatic chronograph movement that measures time to a precision of 1/10th of a second and features a power reserve of up to 60 hours. The stainless steel case adds durability while enhancing the overall aesthetic, complemented by sapphire crystal glass that ensures scratch-resistance. Wearing the Chronomaster Open is an experience in itself, striking a perfect balance for most wrists with its comfortable fit. Whether dressing up or going casual, this watch complements any outfit due to its versatility and excellent after-sales service offered by Zenith.
Buy Now on Jomashop
This is an affiliate link
Key Features
- Automatic chronograph movement (El Primero 3604)
- Water resistance of 100 meters
- Stainless steel case with sapphire crystal glass
- Open-heart design for intricate workings visibility
- Power reserve of up to 60 hours
- Frequency of 36,000 vibrations per hour
- Lubricant-free silicon escapement
Specifications
- Brand
- Zenith
- Family
- El Primero
- Model
- Chronomaster Open Stainless Steel / Blue / Boutique Edition
- Reference
- 03.3300.3604/51.M3300
- Movement Features
-
- Hours, Minutes, Small Seconds
- Chronograph, Column wheel
- Case
- Stainless Steel 39.5mm
- Dial Color
- Blue
- 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