Zenith Defy El Primero 21 Blue 44mm Skeletonized Dial REF 95.9002.9004/78.R584 Full Set 2021

Description

The Defy El Primero 21 represents Zenith’s modern evolution of its legendary high-frequency chronograph, combining advanced mechanical engineering with a contemporary skeletonized design. This 44 mm titanium reference features a partially openworked dial accented in blue and is often favored by collectors for its added contrast and visual depth.

The layered skeleton construction reveals the movement’s structure while maintaining strong legibility through applied markers and luminous hands. The titanium case keeps the watch lightweight on the wrist while preserving a solid, technical feel.

Inside is Zenith’s El Primero Caliber 9004, an automatic chronograph movement built around two independent escapements. The timekeeping escapement operates at a traditional high frequency, while the separate chronograph escapement runs at an exceptionally fast rate, allowing the central chronograph hand to measure 1/100th of a second. The chronograph hand completes one full rotation per second, a distinctive characteristic of the Defy El Primero 21.

The watch provides approximately 50 hours of power reserve for timekeeping, with a separate reserve dedicated to the chronograph operation. The high-speed chronograph system engages only when activated, preserving efficiency and mechanical longevity.

Finished on blue alligator leather over a rubber strap and titanium deployant clasp, the Defy El Primero 21 delivers a bold and technical sports watch with a strong mechanical presence.

This watch is like new. Crystal is clean. The dial, bezel, and strap show no visible wear. Please review all photos for the exact condition.

Specifications

• Brand: Zenith

• Model: Defy El Primero 21 Blue

• Year: 2021

• Reference: 95.9002.9004/78.R584

• Movement: Zenith El Primero Caliber 9004 High Frequency Chronograph (1/100th second)

• Case Material: Brushed Titanium

• Case Size: 44mm

• Thickness: 14.5mm

• Bezel: Fixed Titanium Bezel

• Dial: Skeletonized Dial with Blue Accents

• Crystal: Sapphire

• Power Reserve: 50 Hours (timekeeping), 50 Minutes (chronograph)

• Water Resistance: 100m / 330ft

• Strap: Blue Alligator Leather over Rubber Strap, Titanium Deployant Clasp

• Lug Width: Integrated

Condition

This watch is like new with no signs of wear. Please review all photos for the exact condition. Additional photos, angles, and timestamp verification available upon request.

Full Set

This watch includes complete accessories as originally delivered, including:

• Complete accessories as originally delivered

• Original Zenith boxes

• Warranty materials

• Manuals and documentation

Warranty & Authenticity

100% authentic Omega. Professionally inspected and accurately represented prior to sale. Backed by our 1-Year Movement Warranty.