Seiko Marinemaster 1968 Heritage Diver’s HBF001J1

Seiko Marinemaster 1968 Heritage Diver’s HBF001J1

The Seiko Marinemaster 1968 Heritage Diver’s HBF001J1 is a professional-grade diving watch inspired by Seiko’s legendary 1968 diver. It combines iconic design with modern materials and advanced watchmaking technology, delivering reliable performance in demanding conditions.

The stainless steel case measures 42.6 mm in diameter and 14.1 mm in thickness. The bezel features a ceramic insert and a unidirectional rotating dive scale. A dual-curved sapphire crystal with anti-reflective coating on the inner surface enhances clarity and durability.

The hands, indexes and bezel markings are coated with LumiBrite for excellent visibility in low-light conditions. A screw-down crown and screw case back provide additional durability and ensure water resistance up to 300 meters.

Inside is the Seiko automatic calibre 8L45 with manual winding capability. The movement beats at 28,800 vibrations per hour, contains 35 jewels and offers a power reserve of approximately 72 hours. It also features a stop seconds function and date display.

The stainless steel bracelet includes a three-fold clasp with push-button release and a slide adjuster for easy sizing. The lug width is 20 mm and the watch has magnetic resistance of 4,800 A/m.