The Prospex Marinemaster upholds Seiko’s longstandinglegacy of bold exploration in a collaboration with JAMSTEC.
Seiko’s journey in diver’s watchmaking began in 1965 with Japan’s first diver’s watch, which accompanied members of the Japanese Antarctic Research Expedition to the South Pole from 1966 to 1969. This model was followed by the creation of the nation’s first 300m water-resistant diver’s watch in 1968.










