This Seiko Prospex Black Series “Captain Willard” 42.7mm is inspired by 1970s divers’ watches, featuring a black dial with luminous indices, on a matching black stainless steel case and bezel. Fitted on an attached to an interchangeable brown fabric strap or black silicon strap specially designed for diving. In addition to a date display and 200m of water resistance, this SPB257J model is powered by the 6R35 Calibre offering up to 70 hours power reserve.
Launched in 1970, this diver's watch with a unique streamlined form was worn by adventurer Naomi Uemura between 1974 to 1976. While maintaining the case form of the original, the water resistance has been increased from 150m to 200m and the glass material has been upgraded to sapphire glass.