The IWC Aquatimer Chronograph ref. IW378201 is a rugged yet collectible dive watch, created as a tribute to legendary ocean explorer Jacques Cousteau. Produced in a limited run of around 2,500 pieces, it has become a sought-after model among enthusiasts. This watch features a 44mm stainless steel case paired with a blue rubber strap and a distinctive blue dial, a signature look of the “Cousteau Divers” editions. It has a strong tool-watch presence, but still works well as an everyday sporty piece. What makes this reference extra special is the engraved caseback, which includes an inlay of wood taken from Cousteau’s famous research vessel, the Calypso. This small detail gives the watch real historical character and adds to its collector appeal. Original the watch was sold with a rubber bracelet. The watch originally came fitted with a rubber strap, which is still included with the watch.