This pre-owned Patek Philippe Moon Date model 5054 has a leather watch strap comes in Yellow Gold 18CT case and it is supplied with a year warranty. Half way through the lunation, the moon appears full. It then wanes as it disappears behind the terminator on the left of the aperture. As the moon vanishes, the second moon on the disc is ready to appear on the right. Patek Philippe is Geneva’s oldest independent family-owned watch manufacturer that was founded in 1839. Faithful to the noble artisanal techniques, its watchmakers and craftsmen perpetuate, day after day, the beautiful, timeless gestures and the sharpness of eye and deftness of touch that have always distinguished the fine art of watchmaking.