Zenith Defy Defy El Primero 21 Black Ceramic / Skeleton / Bracelet
Reference 49.9011.9004/18.R582
About this watch
The Zenith Defy El Primero 21 is a masterclass in luxury watchmaking, blending innovative technology with stunning design and exceptional performance. Its black ceramic case exudes modernity and sophistication, while the skeleton dial showcases intricate mechanics that are both mesmerizing and functional. The robust bracelet provides comfort and security, making it ideal for daily wear. At its heart lies the El Primero 9004 movement, a self-winding chronograph capable of measuring time to 1/100th of a second with unparalleled accuracy. Whether timing a race or simply keeping track of intervals, this watch delivers practicality with style. With a water resistance rating of 100 meters and a power reserve of 50 minutes for the chronograph, it's designed for active lifestyles. This is not just a timepiece, but a piece of horological history that holds its value well.
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Key Features
- Black ceramic case
- Skeleton dial with intricate mechanics
- El Primero 9004 self-winding movement
- Chronograph capable of 1/100th second accuracy
- Power reserve indicator at 12 o'clock position
- Water resistance rating of 100 meters
- Robust bracelet for comfort and security
Specifications
- Brand
- Zenith
- Family
- Defy
- Model
- Defy El Primero 21 Black Ceramic / Skeleton / Bracelet
- Reference
- 49.9011.9004/18.R582
- 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