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.
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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

[WTS] Zenith Defy Skyline Tourbillion Black Ceramic 馃敟BNIB 2025, $35K 馃敟

Zenith Defy Skyline Tourbillion Black Ceramic 馃敟BNIB 2025, $35K 馃敟

This is a Zenith Defy Skyline Tourbillion Black Ceramic watch, brand new in 2025. It comes with the original box and warranty card.

  • Condition: Brand New, BNIB
  • Movement type: Tourbillion
Posted at
Mar 2, 2026, 7:05 AM
Active
[WTS] Whole Lotta Wrist Fun! Zenith Defy Titanium Extreme Diver El Primero Sunray Blue Dial FULL 2024 Set!

Whole Lotta Wrist Fun! Zenith Defy Titanium Extreme Diver El Primero Sunray Blue Dial FULL 2024 Set!

A modern iteration of the Zenith El Primero Defy diver with a titanium case, featuring an insane blue starry sunray pattern dial and a sapphire crystal case back.

  • Condition: Mint
  • Diameter: 42.5mm
  • Case material: Titanium
  • Movement: El Primero automatic cal 3620 CS
Posted at
Mar 1, 2026, 7:57 PM
Active
[WTS] Zenith Defy Skyline Skeleton Black Ceramic

Zenith Defy Skyline Skeleton Black Ceramic

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

  • Condition: like new
  • Water resistance: 100M
  • Power reserve: 55hr
  • Movement frequency: 5Hz (36,000 vibration per hour)
Posted at
Mar 1, 2026, 5:48 PM
Active
[WTS] 2022 Zenith Defy Classic Black Ceramic 49.9000.670

2022 Zenith Defy Classic Black Ceramic 49.9000.670

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

  • Warranty expiration date: 8/24/2027
  • Shipping location: MA, USA
Posted at
Mar 1, 2026, 2:10 PM
Active
[WTS] Zenith Defy Classic Skeleton 95.9000.670/78.M9000 - Full Kit

Zenith Defy Classic Skeleton 95.9000.670/78.M9000 - Full Kit

The seller is listing a Zenith Defy Classic Skeleton purchased new in 2020 and still in excellent condition.

  • Condition: Excellent
  • Accessories: all original links, box, card, instructions, cleaning cloth, hang tag
  • Condition Blemish: scuffing on the inside of the bracelet
Posted at
Feb 28, 2026, 11:02 AM
Active
[WTS] Zenith Defy Skyline Skeleton 41mm Black Dial - B&P, 2 straps + bracelet! (03.9300.3620/78.I001)

Zenith Defy Skyline Skeleton 41mm Black Dial - B&P, 2 straps + bracelet! (03.9300.3620/78.I001)

This Zenith Defy Skyline Skeleton watch is a men's automatic timepiece featuring a 41mm black dial.

  • Condition: Good condition, minor signs of light wear
  • Diameter: 41mm
  • Case: Skeleton case
  • Straps: 2 straps included
Posted at
Feb 26, 2026, 3:09 PM
Active