Zenith Defy Defy El Primero 21 Titanium / Diamond / Skeleton / Alligator

Reference 33.9000.9004/78.R582

About this watch

The Zenith Defy El Primero 21 is a masterclass in luxury watchmaking, blending cutting-edge technology with timeless elegance. Its lightweight titanium case and gem-set bezel exude sophistication, while the skeleton dial showcases Zenith's exceptional craftsmanship. At its heart lies the remarkable El Primero 9004 movement, featuring a dual escapement system and cam-actuated chronograph that measures time with astonishing precision. This self-winding marvel boasts a power reserve indicator and water resistance up to 100 meters, making it perfect for both adventure seekers and those who appreciate refined style. With its sleek design and alligator leather strap, the Defy El Primero 21 is a versatile timepiece that effortlessly transitions from formal events to casual outings. Whether you're a seasoned collector or first-time luxury watch buyer, this timepiece will elevate your wrist game to new heights.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Lightweight titanium case
  • Gem-set bezel with diamonds
  • Skeleton dial showcasing Zenith's craftsmanship
  • El Primero 9004 movement with dual escapement system
  • Cam-actuated chronograph measuring time up to 1/100 of a second
  • Power reserve indicator at 12:00
  • Water resistance up to 100 meters

Specifications

Brand
Zenith
Family
Defy
Model
Defy El Primero 21 Titanium / Diamond / Skeleton / Alligator
Reference
33.9000.9004/78.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 Automatic Men’s Watch – White Ceramic – Lightly Worn FULL SET

Zenith Defy Classic Automatic Men’s Watch – White Ceramic – Lightly Worn FULL SET

This is a modern, lightweight luxury sports watch with a fully skeletonized dial and Zenith’s in-house Elite movement.

  • Condition: Lightly worn
  • Case diameter: 41mm
  • Movement jewels: 27
  • Power reserve: ~50 hours
Posted at
Jan 11, 2026, 1:16 PM
Active
[WTS] Zenith Defy Skyline Skeleton Black Ceramic

Zenith Defy Skyline Skeleton Black Ceramic

The Zenith Defy Skyline Skeleton is a high-end watch made from full ceramic construction with a skeletonized dial and rotor. It features an El primero movement beating at 5Hz and has a power reserve of 55 hours.

  • Condition: like new
  • Movement: El primero
  • Vibration rate: 36,000 per hour
  • Power reserve: 55 hours
Posted at
Jan 10, 2026, 3:22 PM
Active
[WTS] 2024 Zenith Defy Skyline 41mm

2024 Zenith Defy Skyline 41mm

For sale is a Zenith Defy Skyline 41mm featuring the El Primero 3620 automatic movement with a modern high-beat manufacture caliber and a 1/10th-of-a-second indicator. The watch has been well cared for and comes as a full set, including original box, papers, bracelet, and green rubber strap.

  • Condition: Pre-owned, excellent condition
  • Movement: Zenith El Primero 3620 automatic (36,000 vph)
  • Case Size: 41mm
  • Dial Color: Silver sunburst with engraved four-point star pattern and applied indices with Super-LumiNova
Posted at
Jan 3, 2026, 2:10 PM
Active
[WTS] Zenith Defy 21 Chroma li 2025 44mm - (1 of 500) full set box and papers

Zenith Defy 21 Chroma li 2025 44mm - (1 of 500) full set box and papers

Zenith - Defy 21 Chroma II · $11,498
The Zenith Defy 21 Chroma Ii is a bold, colorful watch wrapped in lightweight titanium with a black openworked dial and high-frequency chronograph.

  • Condition: Excellent condition with very little to no signs of wear
  • Case size: 44mm diameter
  • Water resistance: unknown
  • Strap count: 4 (2 extra straps included)
Posted at
Jan 2, 2026, 6:04 PM
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