The Sicura Hexa 400: An Ode to a Swiss Watchmaking Classic

Published: 31 Jul 2026
The long-forgotten Swiss brand Sicura makes its triumphant return with the release of a unique dive watch, the Hexa 400.

Established in 1939, Sicura was once a renowned name in Swiss watchmaking. Boasting a range of affordable, bold, and unconventional watch designs, the brand flourished under Ernest Schneider’s stewardship throughout the 1960s and 1970s. Sicura wasn’t afraid to experiment, dabbling in compressor-style divers, jump-hour displays, solar-powered pieces, LED, and multi-function tool watches, all under the catchphrase ‘The Specialist for Specialities’.

However, when Schneider purchased Breitling in 1979, Sicura’s illustrious journey came to an abrupt halt. Breitling absorbed Sicura’s resources for its production, culminating in Sicura’s closure in 1993. Today, decades later, the legacy of Sicura is being revived with an exciting new release, the Hexa 400.

The updated Hexa 400 diver model presents a compact 40mm case with an angular hexagonal construction, echoing the original’s design but with a considerably sharper execution. Crafted from 316L stainless steel, the case offers 14mm thick with a 46mm lug-to-lug span. With impressive wrist presence, Hexa 400 matches in its heft to resilience, featuring anti-reflective and anti-fingerprint coatings over a sapphire crystal and promising water-resistant up to 400 meters.

Aside from the robust case, a key feature is the dual-crown design. Upper crown controls a bi-colour inner rotating ring, tracking a second time zone - a practical solution that bypasses the complexity of a GMT movement. Also equipped with a modern 120-click unidirectional bezel, it’s not just a timepiece, but a connection to the brand’s rich history and a celebration of the fusion of past and present.