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— DOSSIER · 1904 → PRESENT
Our History
A century of pressure, salt, and silence — distilled into instruments worn by those who descend furthest.
▣ MARK 01
1904
The Atelier Opens
Zuccolo Rochet & Cie founded in Geneva. The seed of a brand that would dive deeper than any other.
▣ MARK 02
1904
Marine Nationale Issue
The French Navy's combat divers select the Grands Fonds 300 — its crown moved to 6 o'clock for unmatched protection against impact and corrosion at depth.
▣ MARK 03
2015
Réédition & ECS®
ZRC reissues the legendary 1904 Grands Fonds — faithful in spec, modernized in metallurgy — and introduces the patented ECS® (Eau Claire System) bezel cleaning system.
▣ MARK 04
2020
Programmed Deformation Caseback
A new shielded caseback with programmed deformation geometry is engineered to withstand extreme pressure, pushing the Grands Fonds beyond 1000 meters.
▣ MARK 05
Today
Heterium · Abyss · Titanium
New limited series push the catalog into rarefied colors and Grade 5 titanium constructions, with the Veteran 3000M reaching 10,000 feet of water resistance.
— PRESENT DAY
The Legend Continues
Every Grands Fonds leaving our atelier today carries the same caseback engraving and the same crown placement that distinguished its 1904 ancestor.
◉ EXPLORE THE COLLECTION