Seiko Prospex watches are designed for sports lovers and adventure seekers whether in the water, in the sky or on land. Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative technology has changed global dive watch standards. This Prospex diver’s watch is from the Seiko ‘Save the Ocean’ collection. Working in collaboration with the ocean explorer Fabien Cousteau, Grandson of Jacques, Seiko proudly supports Cousteau Ocean Learning Centre projects - dedicated to the preservation and exploration of our seas. Solar-powered, the watch charges from natural and electric light. The watch shape is affectionately nicknamed by Seiko fans as a ‘Tuna’ - because of its larger diameter and bold shape like a tuna tin - loved for decades since its 1975 release. The accordion-style silicone strap combines high durability and comfort - a strap design invented by Seiko as a practical solution to the expansion and contraction of a diver's wrist at different depths.