Patek Philippe 5065 (Pre-owned - Good) — USD 48,039 on eBay

The Patek Philippe Aquanaut reference 5065 represents the first generation, mid-size variant within the Aquanaut collection. Produced from 1998 to 2007, this 38mm model positioned itself as a contemporary sports watch offering within the Patek Philippe lineup, featuring the collection's characteristic composite strap construction. The 5065 utilizes a stainless steel case measuring 38mm in diameter with a smooth bezel and sapphire crystal. Water resistance extends to 120 meters. The automatic caliber 315 SC movement provides 45 hours of power reserve. The watch displays a black dial and is fitted with Patek Philippe's signature black composite strap. This reference appeals to collectors seeking an entry point into Patek Philippe's sports watch category from the brand's earlier production period. The mid-size 38mm case dimension and stainless steel construction make it accessible compared to precious metal variants, while the nine-year production span from 1998 to 2007 establishes it as the foundational Aquanaut reference for collectors focused on the model's development trajectory.