Product Description The Longines PrimaLuna collection captures the poetic elegance of the moon, designed to reflect refined femininity through soft curves, graceful proportions, and celestial-inspired detail. Housed in a polished stainless steel case, each timepiece is a delicate expression of sophistication offered with a mother of pearl dials or adorned with diamonds for added brilliance. A scratch-resistant sapphire crystal with anti-reflective coating on both sides ensures pristine visibility, while the transparent case back reveals the precision-engineered self-winding mechanical movement. Beating at 25,200 vibrations per hour and powered by a monocrystalline silicon balance-spring, the Calibre delivers an impressive 72-hour power reserve, showcasing Longines’ unwavering commitment to horological excellence.