Zenith Defy Defy El Primero 21 Ultraviolet

Reference 97.9001.9004/80.R922

About this watch

The Zenith Defy El Primero 21 Ultraviolet is more than just a watch; it’s a celebration of innovation, precision, and style. With its advanced movement, striking design, and durable materials, it stands as a testament to Zenith's commitment to excellence. The 44 mm titanium case is lightweight yet incredibly durable, perfect for regular wear. The open dial showcases the intricate mechanics of the watch, while the ultraviolet accents enhance legibility in low-light conditions. At the heart of this chronograph is the self-winding caliber El Primero 9004, capable of measuring time with an accuracy of up to 1/100 of a second. This level of engineering sets Zenith apart in high-end horology. The power reserve for the chronograph is 50 minutes, and it can be wound by hand. With a water resistance of up to 100 meters, this watch is ready for any adventure. Its sporty yet sophisticated look makes it versatile enough for everyday wear. Investing in a Zenith watch is like investing in a piece of history, and the Defy El Primero 21 Ultraviolet is no exception.
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Key Features

  • Zenith caliber El Primero 9004 self-winding movement
  • Skeleton design with dark titanium and ultraviolet accents
  • 44 mm lightweight titanium case
  • Water resistance up to 100 meters
  • Chronograph function with power reserve indicator
  • Sapphire glass for scratch resistance
  • Adjustable strap for comfortable fit

Specifications

Brand
Zenith
Family
Defy
Model
Defy El Primero 21 Ultraviolet
Reference
97.9001.9004/80.R922
Movement Features
  • Hours, Minutes, Small Seconds
  • Chronograph
  • Chronometer, Power Reserve Indicator
Case
44mm
Dial Color
Skeleton
Crystal
Sapphire
Water Resistance
100

Current Listings

Stunning Zenith Defy El Primero 21 Ultraviolet 44MM (97.9001.9004/80.R922)

Stunning Zenith Defy El Primero 21 Ultraviolet 44MM (97.9001.9004/80.R922)

This watch is gorgeous in person and wears so nicely.

  • Condition: Perfect condition
  • Case size: 44MM
  • Box and papers included: true
Posted at
Jan 29, 2025, 4:35 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
[WTS] Zenith Defy Skeleton. Titanium. Lightweight. Nice sports watch !!

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

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

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
Active
[WTS] Zenith Defy Skeleton. Titanium. Clean. Lightweight..

Zenith Defy Skeleton. Titanium. Clean. Lightweight..

Zenith · $4,850
A Zenith Defy Skeleton in titanium, known for its lightweight design.

  • Condition: Clean. Lightweight.
  • Material: Titanium
Posted at
May 16, 2026, 12:53 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

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