百達翡麗，不銹鋼自動上弦腕錶，配中心秒針及日曆顯示，AQUANAUT，型號5167A-001，約2021年製 ，附原廠證書、盒子及外包裝

Launched in 1997, the Aquanaut is a modern classic beloved by many for its versatility and distinctive design. Inspired by the Nautilus, the watch sported a “tropical” strap, made to be ultra-resistant to wear, salt water and UV radiation. In 2007 Patek Philippe launched the reference 5167 series, featuring a more subtle textured dial and a larger case.