Zenith Defy Defy El Primero 21 Titanium / Skeleton / Alligator

Reference 95.9002.9004/78.R584

Zenith Defy El Primero 21 Titanium / Skeleton / Alligator

About this watch

The Zenith Defy El Primero 21 is a stunning luxury watch that combines innovative technology with sleek design, making it a must-have for watch enthusiasts. This timepiece showcases a perfect blend of aesthetics and functionality, featuring a unique skeleton design that allows the wearer to appreciate the inner workings of the El Primero movement. The titanium case is both lightweight and robust, providing a perfect foundation for the intricate skeleton design. The round shape of the case, coupled with the sapphire glass, adds a touch of elegance while ensuring durability. At the core of the Defy El Primero 21 is the Zenith caliber El Primero 9004, a self-winding movement that features a cam-actuated chronograph capable of measuring time with precision up to 1/100 of a second. The watch also boasts a power reserve indicator for the chronograph and a water resistance of up to 100 meters, making it perfect for everyday wear. With its striking aesthetics, exceptional movement, and practical features, this watch embodies the spirit of modern luxury. Whether you're a seasoned collector or a newcomer to the world of luxury watches, this piece deserves a spot in your collection.

Buy Now on Jomashop

This is an affiliate link

Key Features

Zenith caliber El Primero 9004 self-winding movement
Cam-actuated chronograph with precision up to 1/100 of a second
Power reserve indicator for the chronograph
Water resistance up to 100m
Titanium case with sapphire glass
Skeleton design showcasing intricate interplay of gears and springs
Alligator leather strap with 23mm lug width

Specifications

Brand

Zenith

Family

Defy

Model

Defy El Primero 21 Titanium / Skeleton / Alligator

Reference

95.9002.9004/78.R584

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 Extreme 🫨 ($9,500) Watch only

Zenith - 97.9100.9004/02.I001 · $9,500

A Zenith Defy Extreme with a 45mm titanium case, this watch has wrist presence and is comfortable to wear.

Condition: Good condition cosmetically and mechanically
Case material: Titanium
Bracelet type: OEM rubber strap
Case size: 45mm

Posted at

Mar 19, 2026, 4:23 PM

Active

View listing on r/WatchExchange

Zenith Defy Skyline Closed Dial 03.9300.3620/02.1001 ♦️Lightly Used 2024♦️

Zenith - 03.9300.3620/02.1001 · $10,252

This Zenith Defy Skyline Closed Dial is a recent model from Q2 2024, coming with its full set including box and papers.

Condition: Lightly Used
Case size: not specified
Water resistance: not specified

Posted at

Mar 19, 2026, 12:23 AM

Active

View listing on r/WatchExchange

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

Zenith - 49.9000.670 · $6,500

Up for sale is my Zenith Defy Skeleton in Black Ceramic with Box and Papers, dated 2022.

Year: 2022
Warranty Expires: August 2027
Payment Methods: Zelle, Venmo, PayPal F&F, face to face

Posted at

Mar 18, 2026, 11:54 AM

Active

View listing on r/WatchExchange

Zenith Defy 38.2000.463 GMT Automatic Steel&Gold Men's Watch In Original Box $750

Zenith - 38.2000.463 · $750

This Zenith Defy 38 is a men's automatic watch featuring a gold and stainless steel case, leather band, and automatic movement.

Condition: Preowned, with some scratches, tears, wear and marks
Movement: Automatic
Case material: Gold & Stainless Steel
Band type: Zenith Leather with marked buckle band

Posted at

Mar 17, 2026, 4:31 PM

Active

View listing on r/WatchExchange

2024 Zenith Defy Extreme Titanium Diver El Primero Sunray Blue Dial FULL SET

Zenith - 95.9601.3620/51.I301 · $7,595

A modern iteration of the classic Defy diver, featuring a titanium case and a stunning blue starry sunray dial.

Condition: Mint, with light wear
Case size: 42.5mm diameter
Movement: El Primero cal 3620 CS
Depth rating: 30m water resistance

Posted at

Mar 15, 2026, 9:40 PM

Active

View listing on r/WatchExchange

Zenith Defy Skyline Skeleton Black Ceramic

Zenith - Defy Skyline Skeleton · $11,999

This Zenith Defy Skyline Skeleton features a full ceramic construction, skeletonized dial and star shaped rotor.

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

Posted at

Mar 15, 2026, 5:44 PM

Active

View listing on r/WatchExchange

Zenith Defy 21. Titanium. Full Kit. OEM rubber and Deployant Included.

Zenith - Defy 21 · $5,950

A Zenith Defy 21 in titanium with a full kit, including OEM rubber and deployant clasp.

Material: titanium
Shipping location: NJ USA

Posted at

Mar 14, 2026, 12:34 PM

Active

View listing on r/WatchExchange

Zenith Defy Skeleton Chrono 03.9500.3600/78.I001

Zenith - 03.9500.3600/78.I001

This listing does not contain a description of the watch.

Watch type: Skeleton Chrono

Posted at

Mar 13, 2026, 4:30 PM

Active

View listing on r/WatchExchange

Zenith Defy El Primero 21 Titanium Skeleton Box & Papers

Zenith - 95.9000.9004/78.R582 · $70,000

The Zenith Defy El Primero 21 is a bold, technical watch housed in lightweight brushed titanium with an open-worked skeleton dial exposing the in-house El Primero 9004 movement. It has dual escapements, layered subdials, and red chronograph accents creating depth and mechanical drama. The blue rubber strap keeps it sporty and wearable.

Condition: Great pre-owned condition with light signs of wear
Case material: brushed titanium
Movement type: in-house El Primero 9004 movement
Dial description: open-worked skeleton dial

Posted at

Mar 9, 2026, 9:35 AM

Active

View listing on r/WatchExchange