Patek Philippe Aquanaut 5167/1A-001. Case diameter 40mm water resistant to 120 meters. Sapphire crystal see through caSteel Patek Philippe Aquanaut 5167/1A-001.se back. Automatic mechanical movement, calibre 324 S C movement, 21K rotor with Geneva Seal. Embossed black degrading dial, white luminescent applied white gold Arabic numerals and hands with outer minute markers. Steel bracelet with Aquanaut fold-over clasp. Additional Tropical composite black strap with fold-over clasp. Box and papers dated February 2009.