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

[WTS] Zenith Defy 21 Ultraviolet 97.9001.9004/80.R922 44mm Microblasted Titanium $8,150

Zenith Defy 21 Ultraviolet 97.9001.9004/80.R922 44mm Microblasted Titanium $8,150

The Zenith Defy 21 Ultraviolet is a high-end watch featuring microblasted titanium and a clean crystal.

  • Condition: Great condition with slight mark on the case and clean crystal
  • Case size: 44mm diameter
  • Material: Microblasted Titanium
Posted at
Aug 12, 2025, 1:24 AM
Active
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 Defy Classic Skeleton 95.9000.670/78.R584 Full Kit

Zenith Defy Classic Skeleton 95.9000.670/78.R584 Full Kit

Up for sale is a Zenith Defy Classic Skeleton watch with a skeleton dial and automatic movement, coming as full kit with box, papers, and accessories. The watch features a 41mm size and blue crocodile leather strap.

  • Condition: Great condition overall, some light wear on titanium case
  • Size: 41mm diameter
  • Case material: Titanium
  • Strap material: Blue crocodile leather
Posted at
Aug 22, 2025, 9:24 AM
Active
[WTS] Zenith Defy Classic Skeleton Titanium & Rose Gold – BOX & PAPERS – 87.9001.670/79.R589

Zenith Defy Classic Skeleton Titanium & Rose Gold – BOX & PAPERS – 87.9001.670/79.R589

This Zenith Defy Classic Skeleton Titanium & Rose Gold features a titanium case paired with a rose gold bezel, skeleton dial, and sleek black rubber strap. It's a striking choice that balances refined style with everyday wearability.

  • Condition: Very good, with some minor signs of wear
  • Case diameter: 41mm
  • Case material: Titanium with Rose Gold bezel
  • Bracelet type: Rubber with deployant clasp
Posted at
Aug 21, 2025, 10:50 AM
Active
[WTS] Vintage Zenith Defy A3642

Vintage Zenith Defy A3642

Zenith - A3642 · $1,100
Early 1970s Zenith Defy with an iconic octagonal case and 14-sided bezel. The watch has a sturdy construction and sharp angles similar to the Royal Oak.

  • Condition: Pre-owned with cosmetic flaws
  • Movement: 2552PC
  • Diameter: 37mm
  • Lug To Lug: 44.2mm
Posted at
Aug 20, 2025, 5:47 PM
Active
Zenith Defy Inventor, Limited Edition and discontinued prototype Movement!

Zenith Defy Inventor, Limited Edition and discontinued prototype Movement!

Zenith - 95.9002.9100/76.R919 · $17,250.002
The Zenith Defy Inventor is a revolutionary timepiece featuring a new oscillator system that replaces the typical escapement, balance wheel, and pallet fork, removing about 30 components present in a typical movement. It uses a monolithic silicon disc to vibrate at 18hz, well above the industry standard.

  • Movement type: prototype
  • Production status: discontinued
  • Certification: no COSC or Time Lab certification
Posted at
Aug 17, 2025, 1:20 AM
Active