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

Reference 49.9000.9004/78.M9000

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.
Buy Now on Jomashop
This is an affiliate link

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

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

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

A Zenith Defy Classic Skeleton Titanium is up for sale, a skeleton watch featuring a titanium case and an excellent condition.

  • Condition: Excellent condition with minimal signs of wear
  • Case Material: titanium
  • Diameter: 41mm
Posted at
May 24, 2026, 11:52 AM
Active
[WTS] Zenith Defy Skeleton. Titanium. Lightweight. Nice sports watch !!

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

Zenith - Defy Skeleton · $4,700
A lightweight sports watch with a titanium case.

  • Material: titanium
  • Location: NJ USA
Posted at
May 24, 2026, 11:17 AM
Active
[WTS] Zenith Defy Skeleton. Titanium. Clean. Lightweight..

Zenith Defy Skeleton. Titanium. Clean. Lightweight..

Zenith · $4,700
A Zenith Defy Skeleton in titanium, known for its clean and lightweight design.

  • Condition: Clean, Lightweight
  • Material: Titanium
  • Shipping: Fedex with insurance worldwide
Posted at
May 24, 2026, 11:15 AM
Active
[WTS] Zenith Defy El Primero 21 Blue Dial 95.9002.9004/78.R584 – Box / Papers

Zenith Defy El Primero 21 Blue Dial 95.9002.9004/78.R584 – Box / Papers

The Zenith Defy El Primero reference 95.9002.9004/78.R584 is a modern Swiss watch blending cutting-edge design with the respected chronograph El Primero movement.

  • Condition: Excellent condition
  • Case size: 44mm
  • Case material: Titanium
  • Dial condition: Brand new condition
Posted at
May 23, 2026, 11:23 AM
Active
[WTS] 2020 Zenith Defy Classic Skeleton Titanium 95.9000.670/78.M9000 41mm Full Set - $5,995

2020 Zenith Defy Classic Skeleton Titanium 95.9000.670/78.M9000 41mm Full Set - $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
Active
[WTS] Zenith | Skeleton Defy | 44mm | $6,500

Zenith | Skeleton Defy | 44mm | $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
Active
[WTS] Zenith Defy Skyline Chrono Silver - El Primero - Full Set 2024 - Integrated Bracelet & Green Strap w/ Deployant - $7,750

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