Zenith Defy Defy El Primero 21 Titanium / Skeleton / Alligator

Reference 95.9000.9004/78.R582

About this watch

The Zenith Defy El Primero 21 is a masterpiece that combines cutting-edge technology with timeless design. The titanium case offers a robust yet lightweight feel, making it comfortable for daily wear. Its skeletonized dial showcases the heart of the watch, allowing you to admire the intricate mechanics at work. The round case measures 44 mm in diameter and features a sapphire glass that protects the watch from scratches while enhancing visibility. At its heart lies the sophisticated Zenith caliber El Primero 9004, a self-winding movement capable of measuring time with incredible accuracy. With a chronograph that can measure up to 1/100 of a second and a power reserve indicator located at 12:00, this watch is perfect for those who appreciate high performance and sophisticated design.
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Key Features

  • 44mm titanium case
  • Sapphire glass crystal
  • Zenith caliber El Primero 9004 movement
  • Chronograph with 1/100 second accuracy
  • Power reserve indicator at 12:00
  • Alligator leather strap
  • 100m water resistance

Specifications

Brand
Zenith
Family
Defy
Model
Defy El Primero 21 Titanium / Skeleton / Alligator
Reference
95.9000.9004/78.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 Skyline Skeleton Black Ceramic

Zenith Defy Skyline Skeleton Black Ceramic

The Zenith Defy Skyline Skeleton in Black Ceramic is a high-end watch featuring a full ceramic construction, El primero movement, and skeletonized dial with a 10-second subdial.

  • Condition: Like new
  • Water Resistance: 100m
  • Movement Frequency: 5Hz (36,000 vibration per hour)
  • Power Reserve: 55 hours
Posted at
Feb 1, 2026, 10:43 AM
Active
[WTS] 2024 Zenith Defy Skyline 41mm

2024 Zenith Defy Skyline 41mm

A modern high-beat Zenith Defy Skyline featuring the El Primero 3620 automatic movement with a 1/10th-of-a-second indicator, available as a full set including original box and papers.

  • Condition: Pre-owned, excellent condition
  • Movement Frequency: 36,000 vph
  • Case Size: 41mm diameter
Posted at
Jan 30, 2026, 1:54 PM
Active
[WTS] 2024 Zenith Defy Extreme Diver 42.5mm Titanium Black Dial 95.9600.3620 Full Set

2024 Zenith Defy Extreme Diver 42.5mm Titanium Black Dial 95.9600.3620 Full Set

2024 Zenith Defy Extreme Diver, a high-end mechanical watch designed for diving enthusiasts, featuring a titanium case and rotating dive bezel.

  • Condition: Excellent preowned condition with few signs of wear on the case and bracelet
  • Case material: Titanium
  • Case dimensions: 42.5mm diameter
  • Bezel material: Titanium & Ceramic Octagonal Rotating Dive Bezel
Posted at
Jan 29, 2026, 8:09 PM
Active
[WTS] Zenith Defy Skeleton White Ceramic Box & Papers

Zenith Defy Skeleton White Ceramic Box & Papers

The Zenith Defy Classic Skeleton in white ceramic features a skeletonized dial revealing the Elite 670 automatic movement, housed in a 41mm case made of lightweight and scratch-resistant white ceramic.

  • Condition: Great pre-owned condition
  • Case size: 41mm
  • Movement: Elite 670 automatic
Posted at
Jan 29, 2026, 12:53 PM
Active
[WTS] Zenith Defy Skyline Chronograph "Starry Sky" - Full Set 2024 - $8,150

Zenith Defy Skyline Chronograph "Starry Sky" - Full Set 2024 - $8,150

The Zenith Defy Skyline Chronograph 'Starry Sky' features an El Primero 3600 movement with a 1/10th-second chronograph hand and a 60-hour power reserve. The watch has a 42mm stainless steel case, silver/white dial, and integrated stainless steel bracelet.

  • Condition: Excellent
  • Movement: El Primero 3600 automatic chronograph
  • Frequency: 5Hz (36,000 vph)
  • Power reserve: 60 hours
Posted at
Jan 28, 2026, 9:30 PM
Active
[WTS] 2023 Zenith Defy Skyline 41mm Stainless Steel White Dial 03.9300.3620 Full Set

2023 Zenith Defy Skyline 41mm Stainless Steel White Dial 03.9300.3620 Full Set

Zenith - 03.9300.3620 · $5,850
This 2023 Zenith Defy Skyline is a stainless steel model featuring a white sunburst pattern dial. It has a 41mm case diameter and includes additional rubber straps and a deployant clasp.

  • Condition: Nice preowned condition with light scratches on the case, bracelet and bezel. Ding in the bottom lug.
  • Case Dimensions: 41mm diameter
  • Bezel: Stainless Steel Octagonal Bezel
  • Band Material: Steel Bracelet with 3 Additional Rubber Straps & Deployant Clasp
Posted at
Jan 27, 2026, 9:14 PM
Active
[WTS] Zenith Defy Skeleton 95.9000.670/78.M9000

Zenith Defy Skeleton 95.9000.670/78.M9000

The Zenith Defy Skeleton features a modern openworked dial, integrated titanium bracelet, and skeletonized movement. It has a 41mm case and weighs well due to the lightweight materials used.

  • Condition: excellent
  • Case size: 41mm
  • Bracelet material: titanium
Posted at
Jan 26, 2026, 10:11 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