Seiko Prospex 1968 Heritage Diver's GMT SPB519 sub-collection_big-crown-calibre-473 and Seiko’s 6R15 movement

and Seiko’s 6R15 movement

a luminescent material

This Seiko 5 is powered by Seiko’s own 4R36 automatic movement with 41 hours of power reserve

Affixed in seamless fashion to the case is a custom rubber strap with its own texturized Cordura rubber surface

Seiko Prospex 1968 Heritage Diver's GMT SPB519 sub-collection_big-crown-calibre-473 and Seiko’s 6R15 movementAn enduring symbol of adventure 2025 marks the 60th anniversary of the Seiko divers watch. Since creating Japans first divers watch in 1965, Seiko has continuously advanced in divers watchmaking to meet the demands of professional divers worldwide. This pioneering dive watch pursued reliability and safety, paving the way for many future innovations. This new Prospex 1968 Heritage Diver's GMT exemplifies a premium tool watch inspired by a marine sport