Atelier Côte Moonphase

The Moonphase is Atelier Côte's quiet complication — a 40mm white gold case at 9.0mm thick, with a midnight-blue sunray dial and a moonphase aperture at six. The disc beneath the aperture is lacquered in a deeper blue and pierced with two gold moons against a starfield; the display tracks the synodic month to within a day every 2.7 years before correction, advanced through a corrector at eight.

Applied white gold Roman numerals run around the dial above a printed minute track, with blued steel feuille hands and a small seconds at nine to balance the moon at six. A Swiss automatic movement runs at 28,800 vph with 48 hours of power reserve, finished and visible through the sapphire case back. Water resistance is 30m.

The Moonphase sits a step above the Élégance and Guilloché in the Atelier Côte line — the watch chosen for the wearer who already owns a dress watch and now wants a complication that earns the second look across a holiday-party room. Mounted on a midnight-blue alligator strap with a butterfly deployant in matched white gold.