Zenith Defy Defy El Primero 21 Full Carbon / Skeleton / Rubber

Reference 10.9000.9004/96.R921

About this watch

The Zenith Defy El Primero 21 is a stunning fusion of art and engineering, boasting a full carbon body that's not only futuristic but also incredibly lightweight. The skeleton design reveals the intricate inner workings of the watch, making it a feast for the eyes. At its heart lies the El Primero Caliber 9004, a self-winding movement that's a marvel of precision engineering. With a cam-actuated chronograph capable of measuring time down to 1/100 of a second and a water resistance rating of 100 meters, this watch is perfect for those who lead an active lifestyle. The lightweight carbon material makes it feel smaller on the wrist, while the rubber strap adds another layer of comfort. It's a statement piece that's not just about telling time but embracing a lifestyle that celebrates craftsmanship and innovation.
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Key Features

  • Full Carbon Case
  • Skeleton Design with El Primero Caliber 9004 Movement
  • Chronograph Function with 1/100 Second Accuracy
  • Water Resistance up to 100 Meters
  • Lightweight Carbon Material for Enhanced Comfort
  • Rubber Strap for Added Durability

Specifications

Brand
Zenith
Family
Defy
Model
Defy El Primero 21 Full Carbon / Skeleton / Rubber
Reference
10.9000.9004/96.R921
Movement Features
  • Hours, Minutes, Small Seconds
  • Chronograph
  • Chronometer, Power Reserve Indicator
Case
Carbon 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

2020 Zenith Defy Classic Skeleton Titanium in excellent condition, 41mm size, and full set

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 41mm diameter
  • Material: Titanium
Posted at
May 14, 2026, 1:07 PM
Active
[WTS] Zenith Defy El Primero 21 • Titanium • Skeleton • Full Set • Serviced

Zenith Defy El Primero 21 • Titanium • Skeleton • Full Set • Serviced

This listing is about a Zenith Defy El Primero 21 watch with a titanium case, skeleton design, and full set. It has been serviced.

  • Condition: Full set
  • Material: titanium
  • Movement: El Primero 21
Posted at
May 14, 2026, 10:03 AM
Active
[WTS] 2022 Zenith Defy Black Ceramic Skeleton 2022 with Box and Papers 49.9000.670

2022 Zenith Defy Black Ceramic Skeleton 2022 with Box and Papers 49.9000.670

Zenith - 49.9000.670 · $6,350
Up for sale is my Zenith Defy Skeleton in Black Ceramic with Box and Papers, dated 2022.

  • Warranty Expiration Date: 8/24/2027
Posted at
May 13, 2026, 7:34 PM
Active
[WTS] Zenith Defy Blue Dial Full Set – $5,990 Wired/Shipped CONUS Zenith Defy blue dial, pAD purchase Nov 2025. Comes complete with: all boxes and papers OEM rubber strap & bracelet Condition 96% shipped CONUS No trades Happy to provide additional photos, or FaceTime

Zenith Defy Blue Dial Full Set – $5,990 Wired/Shipped CONUS Zenith Defy blue dial, pAD purchase Nov 2025. Comes complete with: all boxes and papers OEM rubber strap & bracelet Condition 96% shipped CONUS No trades Happy to provide additional photos, or FaceTime

Zenith - Defy Blue Dial · $5,990
This Zenith Defy Blue Dial is a pre-owned timepiece with a condition of 96%. It features a blue dial and comes complete with its original boxes, papers, OEM rubber strap, and bracelet.

  • Condition: 96%
  • Year Of Purchase: Nov 2025
  • Included Accessories: all boxes, papers, OEM rubber strap & bracelet
Posted at
May 11, 2026, 4:41 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

This is a Zenith Defy Skyline Chronograph, featuring the El Primero 3600 movement that beats at 36,000 vph and drives a 1/10th-second chronograph hand. The watch has a 42mm stainless steel case and a silver dial with a 'Starry Sky' pattern.

  • Condition: Excellent
  • Movement: El Primero 3600, automatic chronograph
  • Frequency: 36,000 vph (5Hz)
  • Power reserve: 60 hours
Posted at
May 11, 2026, 11:46 AM
Active
[WTS] Zenith Defy Classic (49.9000.670/77.R782) — 2022 — Excellent — $6,750 Shipped CONUS

Zenith Defy Classic (49.9000.670/77.R782) — 2022 — Excellent — $6,750 Shipped CONUS

A Zenith Defy Classic from 2022 is being sold.

  • Condition: Excellent
  • Year: 2022
Posted at
May 10, 2026, 4:43 PM
Active
[WTS] Zenith Defy Skeleton. Titanium. Lightweight. Nice sports watch !!

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

Zenith - Defy Skeleton · $4,950
A lightweight sports watch with a titanium case, featuring a skeleton design.

  • Material: Titanium
Posted at
May 9, 2026, 1:17 PM
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

A 2020 Zenith Defy Classic Skeleton Titanium, in excellent condition, is being sold. The watch features a titanium case and has been thoroughly tested.

  • Condition: Excellent condition with minimal signs of wear
  • Case Size: 41mm diameter
Posted at
May 9, 2026, 11:24 AM
Active
[WTS] Zenith Defy Skyline Tourbillon Ceramic 49.9300.3630/21.I001 ♦️Brand New 2024♦️

Zenith Defy Skyline Tourbillon Ceramic 49.9300.3630/21.I001 ♦️Brand New 2024♦️

A Brand New Zenith Defy Skyline Tourbillon Ceramic watch, featuring a tourbillon and ceramic case.

  • Condition: Brand New
  • Case Material: Ceramic
  • Movement: Calibre 65
  • Box And Papers: Yes
Posted at
May 8, 2026, 3:17 AM
Active