F.P. Journe Chronomètre Souverain Nacre – Ref. CS Calibre 1304

The Chronomètre Souverain Nacre, introduced in 2012 as part of the Boutique Collection, reflects F.P. Journe’s dedication to pure chronometry through elegant simplicity and mechanical excellence. Powered by the hand-wound Calibre 1304 — a movement entirely crafted in 18K rose gold — it offers 56 hours of power reserve and embodies the brand’s philosophy that true precision lies in consistent performance. Slim and refined, the platinum case measures 40 mm in diameter and only 8 mm thick, giving the watch an elegant, understated wrist presence.

Aesthetically, the Nacre edition stands out with a dial combining a whitened guilloché silver centre and a blue mother-of-pearl outer ring that glows softly as it catches the light. Blued steel hands vary in tone depending on viewing angle, complementing the off-centre small seconds at 7:30 and the reverse power reserve at 3 o’clock — a signature symmetrical asymmetry of Journe’s design language. The watch is paired with a hand-stitched navy alligator strap with spring-bar release and a platinum pin buckle, with optional colours like grey or burgundy adding versatility. Produced in very limited quantities and available exclusively through F.P. Journe Boutiques and Espaces, the Chronomètre Souverain Nacre remains one of the most refined and quietly rare expressions of Journe’s classical watchmaking.