Launched in 2025, the Longines PrimaLuna Moonphase L8.126.4.07.6 showcases the elegant rounded shape that defines the PrimaLuna series, enriched by a moon phase display. This timepiece boasts a stainless steel case with a dimension of 34.00 mm in diameter and a thickness of 11.60 mm, extending 41.00 mm from lug to lug. A dual-sided anti-reflective sapphire crystal enhances visibility while protecting the dial, while a sapphire case back offers a glimpse of the automatic movement within. The watch maintains a water resistance of up to 3 bar, or 30 meters.

The mesmerizing green mother-of-pearl dial features diamond hour markers and includes a moon phase window at 6 o'clock, complemented by a date pointer. Rhodium-plated leaf hands pair beautifully with the polished steel of the case and bracelet. The timekeeping is powered by the Longines caliber L899, an automatic movement running at 25,200 vibrations per hour and providing an impressive 72-hour power reserve. Built on the ETA A31.L91 framework, it offers functionalities including hours, minutes, central seconds, a pointer date, and moon phase display. Additionally, the watch is attached to a stainless steel bracelet secured with a triple-folding safety clasp for added security, weighing approximately 110 grams.