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

Reference 24.9000.9004/78.R582

About this watch

The Zenith Defy El Primero 21 Black Ceramic / Skeleton / Alligator is a marvel of modern watchmaking, showcasing Zenith's commitment to pushing the boundaries with its striking black ceramic case and skeleton dial. This timepiece is a statement, a blend of functionality and artistry. The bold design features an alligator leather strap that adds a touch of elegance, while the 44.00 mm diameter and 14.50 mm height make it substantial without being overwhelming. At the core of this masterpiece is the Zenith caliber El Primero 9004 movement, a self-winding marvel capable of measuring time to a precision of 1/100 of a second. The chronograph runs on its own escapement system, with a balance wheel operating at an astounding 360,000 beats per hour. This innovative movement features dual balance springs made from a carbon-matrix carbon nanotube composite, enhancing precision and reliability.

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Key Features

Zenith caliber El Primero 9004 movement
Black ceramic case with skeleton dial
Chronograph function with power reserve indicator
Durable sapphire glass and alligator leather strap
Water resistance up to 100 meters
Certified chronometer for precision and accuracy

Specifications

Brand

Zenith

Family

Defy

Model

Defy El Primero 21 Black Ceramic / Skeleton / Alligator

Reference

24.9000.9004/78.R582

Movement Features

Hours, Minutes, Small Seconds
Chronograph
Chronometer, Power Reserve Indicator

Case

44mm

Dial Color

Skeleton

Crystal

Sapphire

Water Resistance

100

Current Listings

2020 Zenith Defy Classic Skeleton Titanium 95.9000.670/78.M9000 41mm Full Set - $5,995

Zenith - 95.9000.670/78.M9000 · $5,995

2020 Zenith Defy Classic Skeleton Titanium in excellent condition, 41mm size, and full set

Condition: Excellent condition with minimal signs of wear
Case size: 41mm diameter
Material: Titanium

Posted at

May 14, 2026, 1:07 PM

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Zenith Defy El Primero 21 • Titanium • Skeleton • Full Set • Serviced

Zenith - Defy El Primero 21

This listing is about a Zenith Defy El Primero 21 watch with a titanium case, skeleton design, and full set. It has been serviced.

Condition: Full set
Material: titanium
Movement: El Primero 21

Posted at

May 14, 2026, 10:03 AM

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2022 Zenith Defy Black Ceramic Skeleton 2022 with Box and Papers 49.9000.670

Zenith - 49.9000.670 · $6,350

Up for sale is my Zenith Defy Skeleton in Black Ceramic with Box and Papers, dated 2022.

Warranty Expiration Date: 8/24/2027

Posted at

May 13, 2026, 7:34 PM

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[WTS] Zenith Defy Blue Dial Full Set – $5,990 Wired/Shipped CONUS Zenith Defy blue dial, pAD purchase Nov 2025. Comes complete with: all boxes and papers OEM rubber strap & bracelet Condition 96% shipped CONUS No trades Happy to provide additional photos, or FaceTime

Zenith Defy Blue Dial Full Set – $5,990 Wired/Shipped CONUS Zenith Defy blue dial, pAD purchase Nov 2025. Comes complete with: all boxes and papers OEM rubber strap & bracelet Condition 96% shipped CONUS No trades Happy to provide additional photos, or FaceTime

Zenith - Defy Blue Dial · $5,990

This Zenith Defy Blue Dial is a pre-owned timepiece with a condition of 96%. It features a blue dial and comes complete with its original boxes, papers, OEM rubber strap, and bracelet.

Condition: 96%
Year Of Purchase: Nov 2025
Included Accessories: all boxes, papers, OEM rubber strap & bracelet

Posted at

May 11, 2026, 4:41 PM

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Zenith Defy Skyline Chrono Silver - El Primero - Full Set 2024 - Integrated Bracelet & Green Strap w/ Deployant - $7,750

Zenith - 03.9500.3600/01.I001 · $7,750

This is a Zenith Defy Skyline Chronograph, featuring the El Primero 3600 movement that beats at 36,000 vph and drives a 1/10th-second chronograph hand. The watch has a 42mm stainless steel case and a silver dial with a 'Starry Sky' pattern.

Condition: Excellent
Movement: El Primero 3600, automatic chronograph
Frequency: 36,000 vph (5Hz)
Power reserve: 60 hours

Posted at

May 11, 2026, 11:46 AM

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Zenith Defy Classic (49.9000.670/77.R782) — 2022 — Excellent — $6,750 Shipped CONUS

Zenith - 49.9000.670/77.R782 · $6,750

A Zenith Defy Classic from 2022 is being sold.

Condition: Excellent
Year: 2022

Posted at

May 10, 2026, 4:43 PM

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Zenith Defy Skeleton. Titanium. Lightweight. Nice sports watch !!

Zenith - Defy Skeleton · $4,950

A lightweight sports watch with a titanium case, featuring a skeleton design.

Material: Titanium

Posted at

May 9, 2026, 1:17 PM

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2020 Zenith Defy Classic Skeleton Titanium 95.9000.670/78.M9000 41mm Full Set - $5,995

Zenith - 95.9000.670/78.M9000 · $5,995

A 2020 Zenith Defy Classic Skeleton Titanium, in excellent condition, is being sold. The watch features a titanium case and has been thoroughly tested.

Condition: Excellent condition with minimal signs of wear
Case Size: 41mm diameter

Posted at

May 9, 2026, 11:24 AM

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