F.P. Journe Octa Automatique Lune Nacre Ref. AL Boutique Platinum Blue Mother of Pearl Dial

Mother of pearl arrived in the Journe boutiques in 2012 as a way of separating what those shops sold from what dealers could get, and the Nacre pieces have stayed boutique only ever since. On the Automatique Lune it is used sparingly, as an outer ring rather than a whole dial, so the shell reads as a border around the familiar guilloché middle of an Octa dial. Production paused for years, resumed, then stopped again in 2024.

Platinum takes the blue nacre; the rose gold version takes pink. Blue shell against a white metal case is the colder of the two readings, and the material shifts as the wrist moves under light, which no printed or lacquered dial can do. The center stays whitened guilloché silver, so the moon aperture, the large date and the small seconds sit exactly where they always have. Blued steel hands run over all of it.