Meet the Alpinist Black Series Limited Edition. Seiko PROSPEX introduces an authentic premium sport watch, merging the influential heritage of the 1965 SEIKO divers watch with a highly professional night-vision concept. This stainless steel 200m divers watch adopts Seikos Green Lumibrite Pro that was developed to meet the high diving standards of ultimate and longer-lasting brightness underwater. The original model was released in 1965 as the first made-in-Japan divers watch. It had a water resistance of 150m, exceeding the standards of other brands and successfully proved its reliability by accompanying numerous adventures including those of the Antarctic Research Expedition. This watch adopts the famous case design of the 'turtle origin' introduced in 2022 & its design expresses the view seen through a night scope and the all-black exterior mirrors a night vision view of the world. Features include a Stainless Steel Case, Stainless Steel Bracelet, Automatic Movement Caliber: 6R35, 24 Jewels, Sapphire Crystal With Magnifier, Black Dial, and Analog Display.