Seiko’s Latest Marinemaster Draws From Okinawa’s Mangrove Forests
The limited edition channels the region’s coastal ecosystems through green tones and warm metallic accents.
Seiko is revisiting one of the most important chapters in its dive-watch history with the new Prospex Marinemaster 1968 Heritage Save the Ocean Limited Edition, a 900-piece release inspired by Okinawa’s mangrove forests. The model draws directly from Seiko’s landmark 1968 Diver’s watch – the world’s first hi-beat diver – preserving the broad case silhouette and professional-tool character while introducing a more expressive color palette. Its deep green dial is paired with rose gold-colored accents, creating a warmer, more refined contrast that references the dense coastal ecosystems where land and sea meet.
Functionally, the watch remains firmly rooted in Seiko’s professional diving lineage. The case retains the original model’s streamlined profile and signature 4 o’clock crown, alongside a unidirectional rotating bezel, LumiBrite detailing and 300 meters of water resistance in accordance with ISO diving standards. Inside sits Seiko’s Calibre 8L45, delivering accuracy of +10/-5 seconds per day and a 72-hour power reserve, while the bracelet is fitted with a three-fold clasp, push-button release and slide adjuster for practical use over a wetsuit or on the wrist.
The Prospex Marinemaster 1968 Heritage Save the Ocean Limited Edition is restricted to 900 pieces worldwide, positioning it as one of the more exclusive contemporary Marinemaster releases. Official pricing is set at £3,300 GBP (approx. $4,370 USD), it’s currently available to order through the Seiko Boutique website, with deliveries scheduled to begin in November 2026.
