The 5085/1A-001 from Patek Philippe was introduced in 1998 the represented a high-class foray into the sports watch. The 5085/1A-001 has a 37mm case made of stainless steel that has an exhibition case back, a fixed stainless-steel bezel and a winding crown. The dial is a rich black with Arabic numerals, with sub-dials that display a power reserve indicator, a moon phase, small seconds and the date. The 5085/1A-001 is powered by the self-winding 240 PS caliber that has date, moon phase functionality and a power reserve of 48 hours. The case is paired with a stainless-steel bracelet that features a unique scale design with a hidden fold-over clasp. It has a water resistance of 30 meters (98 feet).