Zenith
Zenith Class Sport El Primero Stainless Steel / Black / Bracelet 03.0510.400/24.M510
The Zenith Class Sport El Primero Stainless Steel / Black / Bracelet (reference 03.0510.400/24.M510) is a stainless steel watch with a black dial.
Specifications
Case
- Reference
- 03.0510.400/24.M510
- Collection
- Class
- Case material
- Stainless steel
- Bracelet / strap
- Bracelet
Dial and bezel
- Dial
- Black
Dial versions
This reference was made with these dials and finishes.
03.0510.400/24.M510 Black
Black
How it compares within the Class family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 03.0510.400/24.M510 (This watch) | — | Stainless steel | Black | — | — |
| 03.0510.400/04.C491 | — | Stainless steel | Silver | — | — |
| 03.0510.400/04.M510 | — | Stainless steel | Silver | — | — |
| 03.0510.400/24.C492 | — | Stainless steel | Black | — | — |
About the Class family
Class was an older Zenith line of classic round watches, including El Primero chronographs in dress-style cases. It belongs to the period before the brand reorganised its range around the Chronomaster, Defy and Pilot families, and the models are no longer current.
The catalog lists four steel references with the El Primero 400. Dealers check the dial, the strap or bracelet and the papers, and look for a service record on the chronograph.
Quick answers
- What is the Zenith Class Sport El Primero Stainless Steel / Black / Bracelet 03.0510.400/24.M510 made of?
- The case is stainless steel. Bracelet or strap: Bracelet.
Catalog facts checked October 2026.