Seiko fans have named this watch the 'turtle' due to its turtle-like silhouette and comfortable curved design. Just like sea turtles are symbols of good fortune to divers, this diver's watch is beloved by diving enthusiasts. Seiko Prospex watches are designed for sports and adventure lovers, whether in water, air, or on land. Since launching Japan's first diver's watch in 1965. This watch uses a 4R36 calibre automatic movement with manual winding and features Lumibrite hands and hour markers for enhanced visibility in low light conditions. • Powered by the automatic movement with a power reserve of up to 41 hours. • Presented on a black rubber strap with traditional buckle. • Hardlex glass. • 45.0mm case width. • 200 metre water resistance.