September 8, 2025
Berneron follows its successful debut with the Quantième Annuel, a timepiece that pivots from the organic asymmetry of the Mirage to a study in symmetrical engineering and material science. This sophomore release is a technical showcase, integrating a novel case construction with a sophisticated annual calendar movement, demonstrating a significant evolution in the brand’s design and mechanical philosophy.
Case Specifications and Material Composition
The Quantième Annuel is built upon a precisely dimensioned platform, measuring 38mm in diameter, 10mm in thickness, and 45mm lug-to-lug. Its core architecture is milled from solid 950 platinum, which accounts for 85% of the case’s total mass. In a pragmatic approach to durability, the most exposed surfaces—the bezel, crown, and lugs—are shielded by six individually attached components crafted from 904L stainless steel. This protective “armor” is fully removable and replaceable, ensuring long-term serviceability. The case is further detailed with a hinged officer-style back, which protects a sapphire exhibition window, and offers a water resistance of 30 meters.
The Caliber 595 Movement
At the heart of the watch is the Caliber 595, a manual-wind annual calendar movement composed of 476 individual parts. The plates and bridges are crafted from solid 18k gold, reflecting high-horology standards. It operates at a frequency of 21,600vph (3 Hz) and offers a substantial 100-hour power reserve. The movement’s design is intentionally symmetrical, a philosophy visible through the caseback, featuring a free-sprung balance for enhanced chronometric stability.
Complication and Interface Engineering
The display is methodically organized for legibility. It features a jumping hour aperture at 12 o’clock, a central minutes hand, and a running seconds sub-dial at 6 o’clock that incorporates an AM/PM indicator. The annual calendar functions are presented via windows for the day and month, with a central hand indicating the date. The setting mechanism is engineered for user safety and intuition. While the crown adjusts time and date, flush pushers at 4 and 8 o’clock correct the day and month respectively. Critically, the Caliber 595 includes an integrated safety system that prevents damage from setting the calendar during date-change periods, automatically advancing to the first of the correct month if an invalid date is attempted.
In conclusion, the Berneron Quantième Annuel is a technically dense offering. Its value is derived not from simple aesthetics but from its complex interplay of advanced materials, a robust and thoughtfully designed in-house caliber, and a user-centric approach to its complex functionality.
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