Zenith
Zenith G.F.J. Calibre 135 Tantalum / Onyx 98.1865.0135/21.C212
The Zenith G.F.J. Calibre 135 Tantalum / Onyx (reference 98.1865.0135/21.C212) is a Tantalum watch.
Specifications
Case
- Reference
- 98.1865.0135/21.C212
- Collection
- G.F.J.
- Case material
- Tantalum
Dial versions
This reference was made with these dials and finishes.
98.1865.0135/21.C212
Onyx
How it compares within the G.F.J. family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 98.1865.0135/21.C212 (This watch) | — | Tantalum | — | — | — |
| 30.1865.0135/56.C216 | — | Yellow gold | — | — | — |
| 30.1865.0135/56.M0135 | — | Yellow gold | — | — | — |
| 40.1350.135/21.C1000 | — | — | — | — | — |
| 40.1865-2.0135/01.C220 | — | — | — | — | — |
| 40.1865.0135/51.C200 | — | — | — | — | — |
| 40.1865.0135/51.M0135 | — | Platinum | Blue | — | — |
About the G.F.J. family
The G.F.J. was introduced in 2023 as a tribute to Zenith's founder, Georges Favre-Jacot. It brought back the caliber 135, a hand-wound movement that won many observatory chronometry competitions in the mid-20th century, in a limited edition.
The catalog lists references in platinum, yellow gold and tantalum. The caliber 135 was originally developed in the late 1940s, and its return was one of the brand's more technical anniversary projects. Dealers check the edition number, dial and papers.
Quick answers
- What is the Zenith G.F.J. Calibre 135 Tantalum / Onyx 98.1865.0135/21.C212 made of?
- The case is Tantalum.
Catalog facts checked October 2026.