Patek Philippe Aquanaut

A steel sports watch with a rounded octagonal case and a rubber strap with the same pattern as the dial.
The Aquanaut came out in 1997 and was aimed at a younger public than the Nautilus. Its shape was related to the Nautilus but simpler. The rubber strap was unusual for an expensive watch and became the model's hallmark.
Materials: Stainless steel, composite rubber; self-winding movement
Manufacture: Made in Geneva; the strap is made of a material that withstands salt water.
The embossed chequered pattern on dial and strap.
The octagonal case with softly rounded corners.