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. The PADI timepiece collection is exclusive to Seiko as the only global watch brand to design a range of professional diver's watches in official colours featuring the PADI logo. PADI (The Professional Association of Diving Instructors) is the world's leading scuba diving training organisation, unifying divers around the globe who share a passion for adventure and love for the ocean. The accordion-style silicone strap combines high durability and comfort - a strap design invented by Seiko in 1975 as a practical solution to the expansion and contraction of a diver's wrist at different depths.