Zenith Defy Defy El Primero 21 Ultrablue

Reference 97.9001.9004/81.R946

About this watch

The Zenith Defy El Primero 21 Ultrablue is a masterpiece of horology, boasting an exceptional Zenith caliber El Primero 9004 movement with 36,000 vibrations per hour. Its skeleton dial and vibrant blue accents create a dynamic contrast that's both sporty and elegant. With a water resistance of up to 100 meters and sapphire crystal glass, this watch is built for adventure. The titanium case provides durability and a lightweight feel on the wrist, making it perfect for everyday wear. Whether you're at a formal event or out for a casual day, the Ultrablue fits seamlessly into any occasion. Its unique features and striking design make it a standout piece in any collection, celebrating craftsmanship and style. With its impressive movement, bold design, and user-centric features, this watch is more than just a tool for telling time; it's an experience.

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Key Features

Zenith caliber El Primero 9004 movement
Skeleton dial with vibrant blue accents
Titanium case with water resistance up to 100 meters
Sapphire crystal glass
Chronograph functionality with 50-minute power reserve
Lightweight and comfortable design
Robust materials and construction

Specifications

Brand

Zenith

Family

Defy

Model

Defy El Primero 21 Ultrablue

Reference

97.9001.9004/81.R946

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 Classic 95.9000.670/78.M9000 Skeleton Automatic Titanium Bracelet 41mm Full Set

Zenith - 95.9000.670/78.M9000 · $5,975

A rugged and modern watch that feels sporty without being bulky, refined without being delicate, with a sharp architectural design and titanium case and bracelet.

Condition: Very good overall condition, with light hairline scratches on the bracelet and peeling on the box
Case material: Titanium
Bracelet material: Titanium
Dial color: Blue

Posted at

Dec 13, 2025, 11:10 AM

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Zenith Defy Skyline 42mm Black for $4500 CONUS

Zenith - Defy Skyline 42mm · $4,500

A Zenith Defy Skyline 42mm in black, purchased from Jomashop last year and only worn around 10 times. It includes an International Warranty.

Condition: Fair
Year of purchase: last year
Previous owner's location: Bay Area
Warranty: International Warranty

Posted at

Dec 11, 2025, 6:13 PM

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Zenith Defy Skyline Chronograph - White Dial - Ref. 03.9500.3600/01.I001

Zenith - 03.9500.3600/01.I001 · $7,950

This is a heavy hitter in the integrated sports watch category that offers incredible value compared to its peers, featuring an updated El Primero 3600 high-frequency movement and a stunning white/silver dial with a starry sky pattern.

Condition: Excellent
Case Size: 42mm diameter
Movement: El Primero 3600
Chronograph Accuracy: 1/10th of a second

Posted at

Dec 9, 2025, 5:57 PM

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2021 Zenith Defy Classic Titanium 95.9000.670/78.R584 - Full Set on Titanium Bracelet

Zenith - 95.9000.670/78.R584

A 2021 Zenith Defy Classic Titanium watch on a titanium bracelet, available for sale as a full set.

Bracelet type: titanium

Posted at

Dec 8, 2025, 3:35 PM

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Zenith Defy Skeleton - White Ceramic - 2021 Full Set - Mint Condition

Zenith - 49.9002.670/01.R792 · $4,950

This Zenith White Ceramic Defy Classic Skeleton watch features a unique skeleton design and a classic case shape, with a ceramic case that is exceptionally light on the wrist.

Condition: Excellent/Mint Condition
Size: 41mm diameter
Year: 2021

Posted at

Dec 7, 2025, 4:57 PM

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Zenith Defy Skeleton Chrono 03.9500.3600/78.I001

Zenith - 03.9500.3600/78.I001

No watch description provided.

Model: Defy Skeleton Chrono

Posted at

Dec 5, 2025, 2:56 PM

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Zenith Defy Skyline 41mm Blue - The Best Integrated Bracelet Under $10K (Fight Me)

Zenith - Defy Skyline · $5,450

The Zenith Defy Skyline 41mm Blue is a high-end watch featuring an El Primero 3620 movement, which runs at 36,000 VpH. It has an integrated bracelet and a unique sub-dial that rotates every 10 seconds.

Condition: Mint/Excellent
Movement: El Primero 3620
Rotation speed: 36,000 VpH (5Hz)
Bracelet size: 41mm case with integrated bracelet

Posted at

Dec 1, 2025, 11:48 PM

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