Patek Philippe Aquanaut 5065J in yellow gold, Box and Papers 2004, originally sold in California. The case is in excellent condition, having been polished in the past, and shows only light wear from use. It features a flawless original black luminova dial with perfectly matching hands, giving superb legibility and balance. Fitted with the original black “tropical” composite strap, highly resistant to wear, and secured by the yellow gold deployant clasp. Measuring 38 mm in diameter, the 5065J represents the first large-format Aquanaut, offering the perfect proportions that would later define the modern line. Powered by the automatic caliber 315 SC with date and central seconds, visible through the sapphire crystal caseback, the watch combines technical reliability with refined finishing. The watch has no service history but is running perfectly. Complete with its original box, certificate of origin, and booklets, this is a rare and highly desirable yellow gold Aquanaut, enhanced by its attractive Californian provenance.