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Zenith

Zenith G.F.J. Calibre 135 40.1865.0135/51.C200

The Zenith G.F.J. Calibre 135 (reference 40.1865.0135/51.C200) is a watch.

Specifications

Case

Reference
40.1865.0135/51.C200
Collection
G.F.J.

Dial versions

This reference was made with these dials and finishes.

  • 40.1865.0135/51.C200

How it compares within the G.F.J. family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
40.1865.0135/51.C200 (This watch)—————
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.M0135—PlatinumBlue——
98.1865.0135/21.C212—Tantalum———

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.

Catalog facts checked October 2026.