A moonphase complication charts the 29.5-day lunar cycle with mechanical precision, indulging humanity’s enduring fascination with the night sky. Here are three standout new models from leading Swiss watchmakers.
The Rhythm of the Cosmos - TAG Heuer
TAG Heuer debuted the Carrera Astronomer at Geneva Watch Days 2025, extending its celebrated racing heritage into celestial territorywith a unique and precise take on the moonphase.
Powered by the new Calibre 7, the Astronomer features a 50-hour power reserve and an innovative rotating disc at 6 o’clock displaying seven moon stages. The caseback features a star-lit observatory, underscoring the collection’s astronomical inspiration.
Three variations — stainless steel, a 500-piece limited edition with turquoise accents, and a refined two-tone steel and rose gold — merge Swiss precision with cosmic artistry.
Moonlit Tradition – Tudor
Tudor introduces the 1926 Luna, its first moonphase watch, created in collaboration with global ambassador and musician Jay Chou. Released to coincide with the Mid-Autumn Festival, the model honours the moon’s symbolic role in Eastern culture as a beacon of family unity and togetherness.
Housed in a 39mm polished steel case, the Luna is offered in black, blue, and Jay’s champagne-tone dial. Each features a moonphase aperture at 6 o’clock, animated by the chronometer-grade Calibre T607-9. The champagne version stands out with a gold “phantom moonlight” disc, capturing the waxing and waning of night’s most enduring muse.
Timeless, precise, and poetic, Luna celebrates horological tradition with modern artistry.
Lunar Elegance – Longines
Meanwhile, Longines’ new PrimaLuna is now elevated by its first automatic moonphase complication alongside a practical date display.
Refined proportions and domed case surfaces play with light, while the bubble-crown surrounded by lunar engravings enhances its celestial identity. Inside beats the L899.5 calibre, offering a 72-hour power reserve and silicon balance spring for lasting precision.
Dial options range from sunray silver with Roman numerals to mother-of-pearl with diamond markers, plus a striking blue edition framed by 48 sapphires. Paired with an alligator strap or steel bracelet, PrimaLuna unites Swiss technical mastery with luminous feminine grace.
