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

Zenith Defy. Titanium. Strap on deployant included.

Zenith - Defy · $5,850

A Zenith Defy titanium watch for sale, featuring a 41mm case and including an OEM rubber strap and deployant clasp, as well as a box and manual.

Condition: Very clean
Case size: 41mm
Material: Titanium

Posted at

Mar 28, 2026, 12:13 PM

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2022 Zenith Defy Skyline Black Dial 41mm 03.9300.3620/21.I001 - Full Set

Zenith - 03.9300.3620/21.I001 · $5,997

The Zenith Defy Skyline features a sleek black dial and a 41mm angular case with an integrated bracelet. The watch is crafted in stainless steel and offers exceptional depth and contrast.

Condition: excellent preowned, like new condition
Case size: 41mm diameter
Water resistance: 100m depth rating
Movement type: El Primero high-frequency automatic movement

Posted at

Mar 27, 2026, 4:00 PM

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Zenith Defy Skyline. Blue dial. Jan 2026. Full Kit

Zenith - 03.9300.3620/51.I001 · $5,900

This is a preowned Blue Dial Zenith Skyline from Jan 2026 with a January 2026 warranty card.

Condition: Excellent condition and partially stickered
Warranty expiration date: Jan 2028
Dial color: blue
Size: 41mm diameter

Posted at

Mar 27, 2026, 3:30 PM

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Zenith | 03.9300.3620/15.I001 | Defy Skyline Ice Blue | $7,750

Zenith - 03.9300.3620/15.I001 · $7,750

This Zenith Defy Skyline Ice Blue is a high-end watch featuring an ice blue dial and a stainless steel case.

Condition: preowned clean condition with minor hairline scratches throughout
Service history: unknown
Shipping: free 2 day insured fedex
Return policy: no returns, all sales are final

Posted at

Mar 27, 2026, 3:06 PM

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Zenith Defy Classic Carbon Skeleton 10.9000.670/80.R795 | Full Set 2022 | Ultra Light 65g | Titanium Clasp

Zenith - 10.9000.670/80.R795

The listing is for a Zenith Defy Classic Carbon Skeleton from 2022, featuring an ultra-lightweight design of just 65g.

Weight: 65g
Material: Titanium
Year: 2022

Posted at

Mar 27, 2026, 9:57 AM

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Zenith Defy Skyline Chronograph Skeleton | Ref. 03.9500.3600/79.I001 | 2025 | Unworn | Full Set

Zenith - 03.9500.3600/79.I001 · $12,450

The Zenith Defy Skyline Chronograph Skeleton features a stunning blue openworked skeleton dial, powered by the high-frequency El Primero chronograph movement, allowing for true 1/10th of a second chronograph precision.

Condition: Unworn
Case diameter: 42mm
Water resistance depth rating: 100m
Power reserve duration: ~55 hours

Posted at

Mar 27, 2026, 6:50 AM

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