Piaget has become known for its growing stable of complicated calibers and particularly for its ultra-thin watches: the company has created 27 ultra-thin calibers over the years, 15 of which have set world records for being the slimmest in their category. It is surprising, then, that Piaget is only this year introducing its first complicated movement created specifically for a ladies’ watch, housed in the new Piaget Limelight Stella Astronomical Moon Phase.
The movement, automatic Caliber 584P, is tailored specifically to the design of the Limelight Stella. It is based on the men’s moon-phase Caliber 504P, except that it is designed for a cushion-shaped case and the moon-phase appears at 12 o’clock rather than at 6 o’clock. The open caseback reveals a gold rotor that matches the color of the gold case – white or rose gold. The movement is decorated in traditional high watchmaking style, with circular-grained mainplate, beveled bridges, circular côtes de Genève, blued screws and the Piaget coat-of-arms engraved on the rotor.
The moon is also more stylized than the one in the men’s edition, with a sandblasted finish, and it is animated by a flute of diamonds surrounding the window. There are three versions in 36-mm-size cases: rose gold; rose gold with diamonds; and white gold with diamonds. Another distinguishing feature of the Limelight Stella Astronomical Moon Phase is strap options. There are nine of them, giving the watch a particularly feminine flair and flexibility: the straps can be changed to match various outfits or to add color, as an accessory would. There are two spectacular high-jewelry versions in 39 mm white gold cases, one set with 9.57 carats on the bezel and dial and the other set with 42 carats including a fully set bracelet.
The astronomical moon-phase function is driven by a 135-tooth wheel (compared to the standard 59-tooth wheel), which ensures the Limelight Stella will require a one-day correction only after 122 years.