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

Zenith Defy Skeleton Chrono 03.9500.3600/78.I001

Zenith - 03.9500.3600/78.I001

Posted at

Feb 1, 2026, 6:42 PM

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Zenith Defy Skyline Skeleton Black Ceramic

Zenith - Defy Skyline Skeleton · $11,999

The Zenith Defy Skyline Skeleton in Black Ceramic is a high-end watch featuring a full ceramic construction, El primero movement, and skeletonized dial with a 10-second subdial.

Condition: Like new
Water Resistance: 100m
Movement Frequency: 5Hz (36,000 vibration per hour)
Power Reserve: 55 hours

Posted at

Feb 1, 2026, 10:43 AM

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2024 Zenith Defy Skyline 41mm

Zenith - Defy Skyline 41mm · $6,200

A modern high-beat Zenith Defy Skyline featuring the El Primero 3620 automatic movement with a 1/10th-of-a-second indicator, available as a full set including original box and papers.

Condition: Pre-owned, excellent condition
Movement Frequency: 36,000 vph
Case Size: 41mm diameter

Posted at

Jan 30, 2026, 1:54 PM

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2024 Zenith Defy Extreme Diver 42.5mm Titanium Black Dial 95.9600.3620 Full Set

Zenith - 95.9600.3620/21.1300 · $7,400

2024 Zenith Defy Extreme Diver, a high-end mechanical watch designed for diving enthusiasts, featuring a titanium case and rotating dive bezel.

Condition: Excellent preowned condition with few signs of wear on the case and bracelet
Case material: Titanium
Case dimensions: 42.5mm diameter
Bezel material: Titanium & Ceramic Octagonal Rotating Dive Bezel

Posted at

Jan 29, 2026, 8:09 PM

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Zenith Defy Skeleton White Ceramic Box & Papers

Zenith - 49.9002.670/01.R792 · $6,899

The Zenith Defy Classic Skeleton in white ceramic features a skeletonized dial revealing the Elite 670 automatic movement, housed in a 41mm case made of lightweight and scratch-resistant white ceramic.

Condition: Great pre-owned condition
Case size: 41mm
Movement: Elite 670 automatic

Posted at

Jan 29, 2026, 12:53 PM

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Zenith Defy Skyline Chronograph "Starry Sky" - Full Set 2024 - $8,150

Zenith - 03.9500.3600/01.I001 · $8,150

The Zenith Defy Skyline Chronograph 'Starry Sky' features an El Primero 3600 movement with a 1/10th-second chronograph hand and a 60-hour power reserve. The watch has a 42mm stainless steel case, silver/white dial, and integrated stainless steel bracelet.

Condition: Excellent
Movement: El Primero 3600 automatic chronograph
Frequency: 5Hz (36,000 vph)
Power reserve: 60 hours

Posted at

Jan 28, 2026, 9:30 PM

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2023 Zenith Defy Skyline 41mm Stainless Steel White Dial 03.9300.3620 Full Set

Zenith - 03.9300.3620 · $5,850

This 2023 Zenith Defy Skyline is a stainless steel model featuring a white sunburst pattern dial. It has a 41mm case diameter and includes additional rubber straps and a deployant clasp.

Condition: Nice preowned condition with light scratches on the case, bracelet and bezel. Ding in the bottom lug.
Case Dimensions: 41mm diameter
Bezel: Stainless Steel Octagonal Bezel
Band Material: Steel Bracelet with 3 Additional Rubber Straps & Deployant Clasp

Posted at

Jan 27, 2026, 9:14 PM

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Zenith Defy Skeleton 95.9000.670/78.M9000

Zenith - 95.9000.670/78.M9000 · $5,995

The Zenith Defy Skeleton features a modern openworked dial, integrated titanium bracelet, and skeletonized movement. It has a 41mm case and weighs well due to the lightweight materials used.

Condition: excellent
Case size: 41mm
Bracelet material: titanium

Posted at

Jan 26, 2026, 10:11 AM

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Zenith Defy Skeleton Chrono 03.9500.3600/78.I001

Zenith - 03.9500.3600/78.I001

Model type: Skeleton Chrono

Posted at

Jan 25, 2026, 5:45 PM

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View listing on r/WatchExchange