Zenith Defy Defy El Primero 21 Black Ceramic / Skeleton / Alligator / Boutique Edition
Reference 49.9001.9004/78.R915
About this watch
The Zenith Defy El Primero 21 Black Ceramic is a masterpiece that combines elegance, functionality, and cutting-edge technology. Its striking design featuring a black ceramic case and skeleton dial exudes confidence and sophistication. The watch comes with an alligator leather strap, enhancing its luxurious feel. At the heart of this timepiece lies the Zenith caliber El Primero 9004, a marvel of modern horology. This self-winding movement is designed with a cam-actuated chronograph capable of measuring time with astonishing precision—up to 1/100 of a second! The watch features a water resistance of up to 100 meters and comes with a limited edition status, making it an attractive option for collectors looking to invest in a piece that will likely appreciate over time. With its unique features, striking design, and limited availability, the Zenith Defy El Primero 21 Black Ceramic stands as a beacon of what true watchmaking should be.
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Key Features
- 44mm round black ceramic case
- Zenith caliber El Primero 9004 movement
- Self-winding chronograph with 1/100 second precision
- Limited edition status, 250 units produced
- Water resistance up to 100 meters
- Alligator leather strap with deployment clasp
- Chronometer certification
Specifications
- Brand
- Zenith
- Family
- Defy
- Model
- Defy El Primero 21 Black Ceramic / Skeleton / Alligator / Boutique Edition
- Reference
- 49.9001.9004/78.R915
- Movement Features
-
- Hours, Minutes, Small Seconds
- Chronograph
- Chronometer, Power Reserve Indicator
- Case
- 44mm
- Dial Color
- Skeleton
- Crystal
- Sapphire
- Water Resistance
- 100
Current Listings
![[WTS] 2025 Zenith Defy Skyline Blue Skeleton Dial El Primero 3620 Automatic 41mm Complete Set - 03.9300.3620/79.I001](https://preview.redd.it/h25i9vm0vibf1.jpg?width=640&crop=smart&auto=webp&s=0fd1a54a7379093cf6694c0dfc6368467e324eab)
2025 Zenith Defy Skyline Blue Skeleton Dial El Primero 3620 Automatic 41mm Complete Set - 03.9300.3620/79.I001
This is a Zenith Defy Skyline with a blue skeleton dial, El Primero 3620 automatic movement, and a 41mm stainless steel case.
- Condition: NEW
- Material: Stainless Steel
- Size: 41mm diameter
![[WTS] Zenith Defy Extreme Titanium Chronograph – 1/100th Second El Primero | Full Set (No Card)](https://preview.redd.it/uikocxscwzaf1.jpg?width=640&crop=smart&auto=webp&s=7361b5a80848896fa76ce90a695433fec215272f)

Pre-Owned Zenith DEFY Skyline 03.9300.3620/51.I001
Pre-owned Zenith DEFY Skyline with a 41mm stainless steel case, automatic movement, blue dial, and 100m water resistance. The watch comes with its original inner and outer box, instruction manual, warranty card, hangtag, and a one-year Topper Pre-Owned Select warranty.
- Condition: 90% condition due to slight marks on the lugs, bezel, and throughout the case
- Bracelet size: up to 7 and 3/8 inches
- Warranty duration: one year
- Water resistance: 100 meters
![[WTS] Zenith Defy Skeleton Titanium](https://preview.redd.it/2r2mg0q9niaf1.jpeg?auto=webp&s=a4ed596bead42e7ef442e372f56bcbd2746ee874)
Zenith Defy Skeleton Titanium
A Zenith Defy Skeleton Titanium is being sold, described as one of the coolest watches in the seller's collection. It comes with a full kit and has been serviced.
- Condition: Pre-owned with minor scratch on crystal
- Case material: titanium
- Crystal condition: light scratch

Pre-Owned Zenith DEFY Skyline 03.9300.3620/51.I001
Pre-owned Zenith DEFY Skyline with a blue dial, automatic movement, stainless steel case, and a water resistance of 100 meters. The watch comes with its inner and outer box, instruction manual, warranty card, hangtag, and a one-year Topper Pre-Owned Select warranty.
- Condition: 90% condition due to slight marks on the lugs, bezel, and throughout the case.
- Case size: 41mm diameter
- Bracelet size range: up to 7 and 3/8 inches
- Water resistance: 100m depth rating

Pre-Owned Zenith DEFY Skyline 03.9300.3620/51.I001
Pre-Owned Zenith DEFY Skyline watch in good condition with some minor wear. The watch has an automatic movement and is water-resistant to 100 meters.
- Condition: 90% condition, slight marks on the lugs, bezel, and case; 91% condition on the bracelet
- Case size: 41mm diameter
- Material: Stainless Steel
- Dial color: Blue
![[WTS] Zenith Defy Blue Ceramic 49.9003.670/51.R793](https://preview.redd.it/5v44n2fxd6af1.jpg?width=640&crop=smart&auto=webp&s=16c7500446ad8e23e123b36654d29faa245acb73)
Zenith Defy Blue Ceramic 49.9003.670/51.R793
Discontinued Zenith Defy Classic Blue Ceramic on a rubber strap, featuring a skeletonized dial and elite movement.
- Movement: Elite
- Case material: Blue ceramic
- Strap material: Rubber