Audemars Piguet Huitieme 18k Yellow Gold 40mm — USD 12,995

The Audemars Piguet Royal Oak reference 14593ST represents a 36mm automatic variant within the Royal Oak Selfwinding series. This stainless steel reference was produced from 1990 to 2000, featuring a blue dial configuration that distinguishes it from other colorway options in the lineup. The 36mm stainless steel case houses the automatic caliber 2225 movement, providing 40 hours of power reserve. The watch features a fixed octagonal bezel and sapphire crystal, with water resistance to 50 meters. The blue dial is paired with a matching steel bracelet, creating a monochromatic stainless steel presentation. This reference appeals to collectors seeking a mid-sized Royal Oak with automatic movement in stainless steel. The 36mm case size positions it between smaller and larger variants in the collection, while the blue dial offers an alternative to standard black or white configurations. The decade-long production run from the 1990s provides reasonable availability for collectors interested in this specific reference.