Zenith Defy Defy El Primero 21 Black Ceramic / Skeleton / Alligator

Reference 49.9000.9004/78.R582

About this watch

The Zenith Defy El Primero 21 Black Ceramic / Skeleton / Alligator is a stunning timepiece that showcases exceptional craftsmanship and innovative technology. Its skeleton design allows you to see the intricate workings of the movement, making it a fantastic conversation starter. The black ceramic case adds a modern touch, while the open-back design gives a sneak peek at the beautifully crafted movement. With its dual escapement system, this watch maintains a high level of accuracy, ensuring consistent performance whether using the chronograph or just checking the time. The watch comes with a power reserve indicator for the chronograph and an alligator leather strap that adds a touch of elegance. Whether you’re dressing up for a formal occasion or going casual, this strap has you covered. With its striking contrast between the skeleton design and bold black ceramic case, this watch is easy to read in any lighting condition. At 44 mm in diameter and 14.5 mm in height, the Defy El Primero 21 has a substantial presence on the wrist, but it’s surprisingly comfortable to wear thanks to its ergonomic design.
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Key Features

  • Zenith Caliber El Primero 9004 Movement
  • Dual Escapement System for Precise Timing
  • Skeleton Design with Black Ceramic Case
  • Chronometer Certified for Accuracy
  • Power Reserve Indicator for Chronograph
  • Alligator Leather Strap with Adjustable Lug Width

Specifications

Brand
Zenith
Family
Defy
Model
Defy El Primero 21 Black Ceramic / Skeleton / Alligator
Reference
49.9000.9004/78.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] Zenith Defy Classic Aero Chronograph El Primero 46mm - Custom 3D printed Bezels $1,999

Zenith Defy Classic Aero Chronograph El Primero 46mm - Custom 3D printed Bezels $1,999

Zenith - 86.0526.4000 · $1,999
A Zenith Defy Classic Aero Chronograph featuring the El Primero 4000 SC movement in a 46mm case. The watch has an aftermarket strap/buckle and multiple custom 3D-printed bezels.

  • Condition: - Keeps excellent time, strong amplitude (~300). - Crystal, dial, and hands are in excellent shape. - Case sides and lugs show visible scratches (see video/photos)
  • Case Size: 46mm
  • Movement: Zenith Calibre El Primero 4000 SC
  • Case Condition: visible scratches on sides and lugs
Posted at
Aug 12, 2025, 10:46 AM
Active
[WTS] Zenith Defy 21 Ultraviolet 97.9001.9004/80.R922 44mm Microblasted Titanium $8,150

Zenith Defy 21 Ultraviolet 97.9001.9004/80.R922 44mm Microblasted Titanium $8,150

The Zenith Defy 21 Ultraviolet is a high-end watch featuring microblasted titanium and a clean crystal.

  • Condition: Great condition with slight mark on the case and clean crystal
  • Case size: 44mm diameter
  • Material: Microblasted Titanium
Posted at
Aug 12, 2025, 1:24 AM
Active
>>REDUCED FURTHER<< ZENITH DEFY EXTREME DIVER TITANIUM 5 Year WARRANTY

>>REDUCED FURTHER<< ZENITH DEFY EXTREME DIVER TITANIUM 5 Year WARRANTY

A Zenith Defy El Primero Extreme Diver in Titanium with a black dial, ceramic bezel, and orange highlights.

  • Condition: LNIB (Like New In Box)
  • Diameter: 42mm
  • Water Resistance: 600m
  • Movement: in house El Primero movement
Posted at
Apr 7, 2025, 2:45 PM
Active
Zenith Defy Revival Shadow 97.A3642.670/21.M3642

Zenith Defy Revival Shadow 97.A3642.670/21.M3642

The Zenith Defy Revival Shadow is a high-end watch that comes in superb condition, with minimal signs of wear.

  • Condition: superb, almost like-new
  • Case and bracelet condition: like-new
  • Warranty expiration date: March 2030
  • Shipping method: FedEx Priority
Posted at
Apr 5, 2025, 2:18 AM
Active
LNIB Zenith Defy Classic Black Ceramic Skeleton Rubber Strap April 2020 Complete

LNIB Zenith Defy Classic Black Ceramic Skeleton Rubber Strap April 2020 Complete

A Zenith Defy Classic Black Ceramic Skeleton watch with a 41mm case, dated April 2020. It features a black ceramic case and titanium DLC buckle.

  • Condition: Like New Condition
  • Case diameter: 41mm
Posted at
Apr 1, 2025, 1:01 PM
Active
LNIB Zenith Defy Classic Black Ceramic Skeleton Rubber Strap April 2020 Complete

LNIB Zenith Defy Classic Black Ceramic Skeleton Rubber Strap April 2020 Complete

One of the thinnest Zenith Defy models, with a black ceramic case and titanium DLC buckle.

  • Condition: Like New Condition
  • Case material: Black Ceramic
  • Case size: 41mm
  • Band type: Rubber Strap
Posted at
Mar 30, 2025, 1:11 PM
Active
NEW 2024 Zenith Defy Skyline 41mm 97.9300.3620/79.I001 Titanium

NEW 2024 Zenith Defy Skyline 41mm 97.9300.3620/79.I001 Titanium

This is a brand new 2024 Zenith Defy Skyline 41mm titanium watch, featuring a 7.5-inch wrist size and additional interchangeable night blue rubber strap.

  • Condition: Excellent overall condition
  • Material: Titanium
  • Case Size: 41mm
  • Wrist Size: 7.5inch
Posted at
Mar 26, 2025, 6:23 PM
Active
Zenith Defy Classic "Skeleton" - 95.9000.670/78.m9000 - Skeleton - Titanium

Zenith Defy Classic "Skeleton" - 95.9000.670/78.m9000 - Skeleton - Titanium

The seller is listing a Zenith Defy Classic 'Skeleton' watch, which features a titanium case and skeleton dial.

  • Condition: Pre-Owned - Excellent Grade
  • Case size: 41mm
  • Bracelet type: Titanium
  • Dial description: skeleton
Posted at
Feb 22, 2025, 11:33 PM
Active
ZENITH DEFY EXRTREME DIVER EL PRIMERO 5 YEAR Warranty

ZENITH DEFY EXRTREME DIVER EL PRIMERO 5 YEAR Warranty

The Zenith Defy El Primero Extreme Diver is a high-end diver's watch featuring a black dial with orange highlights, ceramic bezel, and 42mm diameter. It has a water resistance of 600m and comes with multiple straps and quick-change feature.

  • Condition: LNIB (Like New in Box)
  • Case material: Titanium
  • Water resistance: 600m
  • Movement: In-house El Primero movement
Posted at
Feb 20, 2025, 4:22 PM
Active