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

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

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

Up for sale is a Zenith Defy Classic Skeleton Titanium, a 2020 model with a titanium case and skeleton dial.

Condition: Excellent condition with minimal signs of wear.
Case material: Titanium
Case size: 41mm

Posted at

May 21, 2026, 10:12 PM

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Zenith | Skeleton Defy | 44mm | $6,500

Zenith - 95.9000.9004/78.R582 · $6,500

This is a preowned Zenith Skeleton Defy watch in 44mm size, featuring a skeleton dial.

Condition: preowned clean condition with minor hairline scratches throughout
Diameter: 44mm
Strap Condition: worn but still has plenty of life on it

Posted at

May 19, 2026, 10:29 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

2024 Zenith Defy Skyline Chronograph 'Starry Sky' with El Primero 3600 high-beat auto chrono, 42mm stainless steel case, and integrated bracelet.

Condition: Excellent, light bracelet wear
Case Size: 42mm
Depth Rating: 100m
Movement: El Primero 3600 high-beat auto chrono (36,000 vph / 5Hz)

Posted at

May 19, 2026, 8:35 AM

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

Zenith - Defy Skeleton · $4,895

Zenith Defy Skeleton is a lightweight sports watch made of titanium.

Material: Titanium
Location: NJ USA

Posted at

May 17, 2026, 2:34 PM

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Zenith Defy Classic Carbon Skeleton 10.9000.670/80.R795 Complete Set in Like New Condition

Zenith - 10.9000.670/80.R795 · $8,400

The Zenith Defy Classic Carbon Skeleton is a modern watch that blends design with technical heritage, featuring a carbon fiber case and openworked dial.

Condition: Like new
Case size: 41mm
Case material: carbon fiber
Diameter: less than 63 grams

Posted at

May 16, 2026, 5:42 PM

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