Zenith
Zenith Defy El Primero 21 White Gold / Diamond / Skeleton / Fabric / Swizz Beatz 45.9001.9004/78.R581
The Zenith Defy El Primero 21 White Gold / Diamond / Skeleton / Fabric / Swizz Beatz (reference 45.9001.9004/78.R581) is a white gold watch.
Specifications
Case
- Reference
- 45.9001.9004/78.R581
- Collection
- Defy El Primero 21
- Case material
- White gold
- Bracelet / strap
- Fabric strap
Dial versions
This reference was made with these dials and finishes.
45.9001.9004/78.R581
Skeleton · Diamond
How it compares within the Defy El Primero 21 family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 45.9001.9004/78.R581 (This watch) | — | White gold | — | — | — |
| 10.9001.9004/99.R941 | — | — | — | — | — |
| 32.9000.9004/78.R582 | — | Titanium | — | — | — |
| 32.9008.9004/08.R943 | — | — | — | — | — |
| 95.9001.9004/01.M9000 | 44 mm | Titanium | Silver | El Primero 9004 | 2018–2021 |
| 95.9002.9004/78.M9000 | — | Titanium | — | — | — |
| 95.9004.9004/78.R589 | — | Titanium | — | — | — |
| 95.9016.9004/08.R942 | — | — | — | — | — |
| 96.9000.9004/27.R583 | — | — | — | — | — |
About the Defy El Primero 21 family
The Defy El Primero 21 was introduced in 2017 with the El Primero 9004, which has two separate regulating systems: one for the time at 5 Hz and one for the chronograph at 50 Hz. This lets the central chronograph hand make a full turn every second and measure to a hundredth of a second.
The catalog lists around sixty references in titanium, ceramic, carbon and rose gold, many with skeleton dials. Dealers identify the material and dial from the reference and check the chronograph functions and papers.
Quick answers
- What is the Zenith Defy El Primero 21 White Gold / Diamond / Skeleton / Fabric / Swizz Beatz 45.9001.9004/78.R581 made of?
- The case is white gold. Bracelet or strap: Fabric strap.
Catalog facts checked October 2026.