Designed by Gerald Genta, the Nautilus was one of the first luxury sports watches brought to market, an enduring icon of contemporary 70s design. In 1981, Patek Philippe released a smaller version of the iconic original, the reference 3900. It was more than just a compact iteration mirroring the pristine aesthetic language. Functional developments occurred with the addition of a central second hand—and what made it all tick. This watch was powered by an all-new quartz caliber. Then considered mid-sized at 33mm, the 3900 was a groundbreaking development for the Nautilus, and a commitment to expanding its identity and reach. With all original parts this particular yellow gold 3900 with a gold toned dial, diamond bezel, and diamond dial embodies the brand's majesty. It also comes with a one year Material Good warranty.