This watch shape is nicknamed by Seiko fans as a ‘Samurai’ - because of its angular shaped design which looks as if it were sliced by a Japanese Samurai sword. This Seiko watch boasts a sturdy 43.8mm stainless steel construction with a unidirectional rotating bezel, bold black dial with Lumibrite on hands and indexes, and is powered by Calibe 4R35 automatic movement. 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.