The F.P. Journe Automatique Lune reference AL2-1300.3-RG-40mm is a luxury timepiece featuring a 40mm 18k rose gold case with a thickness of approximately 10.6mm and a lug-to-lug measurement of 48mm. It is characterized by a solid gold dial with a galvanized silver layer, adorned with three-dimensional Clous de Paris guilloché in the center and blue Arabic numerals. The watch is powered by the in-house caliber 1300.3, a self-winding movement crafted from 18k rose gold. This movement utilizes a unidirectional 22k gold rotor and a single large mainspring barrel to achieve a remarkable power reserve of 120 hours of chronometric precision, with an effective total autonomy of approximately 160 hours.
The timepiece incorporates several practical and poetic complications arranged in a balanced, asymmetrical layout. A large instantaneous date display is positioned at 11 o’clock, consisting of two concentric discs on the same plane. The lower left quadrant features a moon phase aperture with a tinted sapphire disc, while a small seconds sub-dial is located at 4:30. A fan-shaped power reserve indicator at 9 o’clock tracks the remaining energy. All functions, including the date and moon phase corrections, are adjusted via the signature silk-rope motif crown, which operates in three distinct positions.
General reviews of the Automatique Lune often emphasize its exceptional design balance and legibility compared to earlier off-centered models. Collectors frequently praise the use of solid gold for the movement bridges and plates, a rarity in modern watchmaking that adds significant weight and luxury. While the finishing is widely regarded as high-grade—featuring circular Geneva stripes and polished bevels—some critics note that at its high secondary market price point, it faces stiff competition from other independent brands. Nevertheless, the watch is celebrated for its unique independent spirit, technical innovation, and the romantic appeal of its moon phase complication.