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Zenith

Defy Skyline

03.9300.3620/21.I001

The El Primero legacy reborn in an open-worked star-patterned dial

Estimated market value
$7,800
Confidence: Moderate
Original retail: $9,300

An estimate from current market data — not an offer. Your actual value depends on condition, completeness, and authentication.

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Overview

The Zenith Defy Skyline reference 03.9300.3620/21.I001 is a 41 mm stainless steel sport watch that channels the brand's storied high-frequency heritage into a thoroughly contemporary package. Its black sunburst dial is defined by a geometric star motif that echoes the oscillating wheel of the movement within, while a dedicated 1/10th-second subdial makes the El Primero's precision immediately legible. Introduced in 2022, the Skyline quickly established itself as a centrepiece of the revitalised Defy collection.

History

The Defy name has appeared across several distinct eras of Zenith's history, but its modern incarnation positions the line as the brand's forward-looking, technically ambitious family. The Skyline variant arrived in 2022 as a more accessible, sport-oriented counterpart to the skeletonised Defy models, retaining the El Primero 3620 calibre's hallmark 1/10th-second measurement capability. The star pattern on the dial is a deliberate visual bridge between the watch's exterior design and the geometry of the movement's star-shaped escape wheel, a motif that has become a recognisable signature of the contemporary Defy range.

Notable points

  • Powered by the Cal. El Primero 3620, a high-frequency automatic movement capable of measuring and displaying elapsed time to 1/10th of a second.
  • The black sunburst dial features a laser-engraved star pattern directly referencing the geometry of the El Primero's iconic star-shaped escape wheel.
  • A dedicated 1/10th-second subdial sits prominently on the dial, making the movement's precision a visual as well as mechanical statement.
  • The 41 mm stainless steel case positions the Skyline as a versatile sport watch, balancing wearability with a bold, architecturally layered dial.
  • Introduced in 2022, the Defy Skyline represents Zenith's intent to make the El Primero's technical identity accessible within a contemporary sport-watch format.

Specifications

Brand
Zenith
Collection
Defy
Reference
03.9300.3620/21.I001
Years of production
2022 – present
Case
41mm stainless steel
Case material
Stainless steel
Case diameter
41 mm
Movement
Cal. El Primero 3620
Crystal
Sapphire
Dial
Black sunburst with star pattern, 1/10th-second subdial
Bezel
Faceted octagonal steel bezel
Bracelet / strap
Integrated steel bracelet
Water resistance
100 m
Power reserve
60 h
Complications
Date
Type
Sport
Worn as
Men's
Also known as
デファイ

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