Launched in 2025, the Longines Master Collection Moonphase Year of the Horse Edition L2.919.4.09.2 is a limited release, with only 2,026 pieces produced to honor the Year of the Horse. This timepiece from the Master Collection features a round case crafted from stainless steel, with dimensions of 42.00 millimeters in diameter and a thickness of 11.20 millimeters. Its lug-to-lug measurement reaches 49.70 millimeters, and the lug width is 21 millimeters. A scratch-resistant sapphire crystal protects the front, while the back of the case also boasts a transparent sapphire crystal. The watch is water-resistant up to 3 bar and has a total weight of 92.0 grams for the head.

Highlighting the special edition's theme, the dial showcases a distinctive sunray red gradient finish. It displays hours, minutes, and seconds, along with a moonphase complication. The date is shown by a small hand set at the six o'clock position, neatly integrated into the lower part of the dial. At its core is the Longines calibre L899, a self-winding mechanical movement that includes a monocrystalline silicon balance spring. This movement operates at a frequency of 25,200 vibrations per hour, offering a power reserve of up to 72 hours and enabling the precise indication of hours, minutes, seconds, moonphase, and date, consistent with the features of the Master Collection Moonphase.