Seiko Prospex Watch Reinterpretation Save the Ocean 1968 42mm SPB301J1

In 1970 Seiko introduced a diver's watch whose asymmetrical case shape protected the crown at the four o'clock position. Its solid construction, luminous hands and indices, and water resistance to 150 meters were perfect for those who required a watch with exceptional strength and visibility. The watch proved its reliability in extreme conditions when worn by Japanese adventurer Naomi Uemura in 1974 and 1976 during the 12,500 km dog sled race from Greenland to Alaska.

With automatic movement capable of manual winding caliber 6R35, with an accuracy of +25 to -15 seconds per day and 24 rubies.

With a 42.7 mm super hardened stainless steel case. Caseback and screw-down crown. The inscription "Special Edition" can be found on the caseback.

The crystal is curved sapphire with anti-reflective coating on the inner surface.

The dial in blue with touches on which the hands and indices with lumbrite stand out.

The window for the calendar is located at 3 o'clock.

The strap is stainless steel with a three-fold clasp with sure lock and push-button release with extender.

It also has a stop second function.

It has a water resistance of 200m (20ATM)