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

Reference 49.9000.9004/78.M9000

Zenith Defy El Primero 21 Black Ceramic / Skeleton / Bracelet

About this watch

The Zenith Defy El Primero 21 is a masterclass in design and technology, featuring a unique chronograph that measures time with unparalleled accuracy. Its striking black ceramic case exudes a modern and sporty vibe while remaining elegant enough for formal occasions. The skeleton design allows you to peek into the intricate workings of the watch, making it a conversation starter. At its core is the El Primero 9004 caliber, a self-winding movement capable of measuring time down to 1/100 of a second. With a balance wheel operating at 360,000 beats per hour and cam-actuated chronograph, this watch boasts accuracy and precision. The power reserve indicator adds sophistication to the dial, while the water resistance of 100 meters makes it ready for any adventure. Whether you're dressing up or going casual, this timepiece effortlessly elevates your ensemble. It's a statement piece that combines cutting-edge technology with striking design, perfect for both watch enthusiasts and casual wearers alike.

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Key Features

Zenith El Primero 9004 movement
Black Ceramic case
Chronograph function with power reserve indicator
Water resistance of 100 meters
Sapphire crystal glass
Robust yet comfortable size (44mm diameter, 14.5mm height)
Ceramic bracelet with secure 23mm lug width

Specifications

Brand

Zenith

Family

Defy

Model

Defy El Primero 21 Black Ceramic / Skeleton / Bracelet

Reference

49.9000.9004/78.M9000

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 Skeleton 95.9000.670/78.M9000

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

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

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Zenith Defy Skeleton Chrono 03.9500.3600/78.I001

Zenith - 03.9500.3600/78.I001

Model type: Skeleton Chrono

Posted at

Jan 25, 2026, 5:45 PM

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Zenith El Primero Defy Extreme Diver AKA PURE WRIST JOY Ref 95.9601.3620/51.I301 FULL SET

Zenith - 95.9601.3620/51.I301 · $7,950

A Zenith El Primero Defy Extreme Diver with a unique blue starry sunray pattern dial and a titanium case.

Condition: Pre-owned, barely over a year old
Case size: 42.5MM diameter
Movement: El Primero cal 3620 CS automatic movement

Posted at

Jan 24, 2026, 7:53 PM

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2020 Zenith Defy Ceramic Skelton

Zenith - 9.9000.670/77.R782 · $4,950

A beautiful Zenith Defy Ceramic Skelton with a warranty card dated 2020, comes as watch and card with travel case.

Condition: Mint condition
Year: 2020
Case material: Ceramic

Posted at

Jan 24, 2026, 12:10 PM

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Zenith Defy Skyline Skeleton Black Ceramic

Zenith - Defy Skyline Skeleton · $11,999

The Zenith Defy Skyline Skeleton is a high-end watch featuring a full ceramic construction with a water resistance of 100m. It has an El primero movement beating at 5Hz and a skeletonized dial.

Condition: Like new
Water Resistance: 100m
Movement Type: El primero
Frequency: 5Hz

Posted at

Jan 24, 2026, 10:16 AM

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Zenith Defy Power Reserve black dial 03.0516.685 – Box + Papers

Zenith - 03.0516.685 · $3,620

This Zenith Defy Classic Power Reserve features a robust stainless steel case, black dial, and automatic movement, making it a versatile watch that blends everyday wearability with distinctive character.

Condition: Attractive condition with very light signs of previous wear
Case size: 43mm diameter
Movement serviced: Yes, freshly serviced by our watchmaker
Accuracy: +1 seconds per day

Posted at

Jan 22, 2026, 6:48 PM

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Zenith Defy Skeleton Blue 🔥Brand New 2026, $8500+Shipping🔥

Zenith - Defy Skeleton Blue · $8,500

This listing is for a brand new Zenith Defy Skeleton Blue. The watch comes with additional details and accessories, as shown in the last picture.

Shipping: additional cost
Payment methods: wire or credit card (+4.9%)

Posted at

Jan 22, 2026, 7:52 AM

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Zenith Defy Skyline Chronograph - Full Set - El Primero 3600 - $9,200

Zenith - 03.9500.3600/01.I001 · $9,200

The Zenith Defy Skyline Chronograph features a silver 'starry sky' dial, a 1/10th-second chronograph with a central chrono hand that makes one full lap every 10 seconds, and a versatile design with a quick-change system for the bracelet and strap.

Condition: Excellent overall Condition
Movement: Zenith El Primero 3600 (5Hz / 36,000 vph) with 1/10th-second chronograph
Case size: 42mm diameter
Bracelets/straps: Steel bracelet and green rubber strap with Zenith quick-change

Posted at

Jan 20, 2026, 7:23 PM

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Zenith Defy Skeleton White Ceramic 49.9002.670/01.R792 Box & Papers

Zenith - 49.9002.670/01.R792 · $6,899

A modern icon that blends cutting-edge design with technical mastery, featuring a 41mm white ceramic case and an openworked dial revealing the Elite 670 automatic movement.

Condition: Great pre-owned condition with light handling marks on the caseback
Case size: 41mm diameter
Movement: Elite 670 automatic

Posted at

Jan 20, 2026, 1:35 PM

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