Patek Philippe Aquanaut 5066A-001. Steel case, diameter of 36mm including crown, water resistant to 60 meters. Automatic PP movement caliber 330, 30 jewels, central rotor in 21k, 224 individual parts. Black dial with luminous hour markers and numerals, date display at the 3-position.Black Rubber strap with Patek folding clasp. Sapphire crystal see through case back. Box and papers dated August 2001. Our reference S21678.