Inspired by the luminous ice shelves of Antarctica, the Seiko Prospex SPB301J1 “Glacier” Save the Ocean Special Edition pairs rugged dive capability with a dial that shimmers like compacted snow. The 42.7 mm stainless-steel case is protected by Seiko’s super-hard coating and topped with a curved sapphire crystal for superior scratch resistance and clarity.

Inside beats the in-house Calibre 6R35 automatic movement, delivering a 70-hour power reserve, hacking seconds, and a quick-set date. A screw-down crown, screw case-back, and unidirectional bezel ensure reliable 200 m water resistance, while LumiBrite on the hands, indexes, and bezel provides crisp legibility in the deepest waters. Each piece is finished with “SPECIAL EDITION” engraving on the case-back—a reminder of Seiko’s commitment to ocean conservation.