A ray of light illuminating the jet-black sea. The theme of the latest Seiko Prospex watch is night diving.

Since its birth in 1965, the SEIKO diver's watch has been loved by many people. Looking back, its performance was first recognized in 1966. It was selected as a piece of equipment for the Antarctic Research Expedition, which conducted research on the natural environment. Later, for three years from 1974, the adventurer Naomi Uemura wore the watch on his wrist during a 12,000-km dog sledding trip in the Arctic Circle, proving once again the high quality of its specifications.

Four new watches that inherit the DNA of such venerable divers' watches will join "The Black Series" of "SEIKO PROSPEX".

This time, the theme was night diving. This modern design was created by decorating the black case, which expresses the darkness and quietness of the sea at night, with orange, which is reminiscent of the light from undersea lights.

SBDX051
Case size: 44 mm (outer diameter) 13 mm (thickness) Price: ¥363,000

This watch is based on the 1970 Mechanical Divers, one of Seiko's representative watches. It is equipped with the "Mechanical Caliber 8L35," a dedicated diver's watch movement produced by the Shizukuishi Fine Watch Workshop in Iwate Prefecture, and has a curved sapphire glass with an anti-reflective coating on the inside. The case and strap are made of black hard-coated stainless steel. The watch is also high-spec in terms of functionality, boasting a water-resistance rating of 200 meters. The number of watches produced is limited to 1,000 pieces worldwide, with 100 pieces prepared for the Japanese market.

1965 Mechanical Divers

SBDC153
Case size: 40.5 mm (outer diameter) 13.2 mm (thickness) Price: ¥143,000

1968 Mechanical Divers

SBDC155
Case size: 42 mm (outer diameter) 12.5 mm (thickness) Price: ¥143,000

1970 Mechanical Divers

SBDC157
Case size: 42.7 mm (outer diameter) 13.2 mm (thickness) Price: ¥154,000

The next three watches introduced here are the Caliber 6R35, which boasts a long power reserve of 70 hours, while maintaining the design of the '65, '68, and '70 models, which represent "Seiko Divers," respectively. The Black Series' first fabric strap is made using a traditional Japanese technique called seichu. The case is made of black hard-coated stainless steel and is water resistant to 200 meters. 5,500 of each model will be made available worldwide, with 500 of the SBDC153 and 300 of each of the other two models being released in Japan.

All launches begin Friday, March 11. If you are interested, please firstSpecial page herefor more information.