百達翡麗，不銹鋼枕形自動上弦腕錶，配中心秒針及日曆顯示，“Aquanaut”，型號5167A，附證書及盒子，2008年製

Patek Philippe introduced the Aquanaut in 1997, inspired by the success of the Nautilus model. The shape of the Aquanaut case features a similar porthole design and 120m water resistance. The watch features an unusual rubber composite strap for immersion in water. In 2007 Patek Philippe launched the reference 5167 series, featuring a more subtle textured dial and a larger case measuring 40mm. The Aquanaut is a modern classic beloved by many for its versatility and distinctive design.