PROSPEX 300M DIVER 1965 HERITAGE DIVERS

Inspired by Seiko¿s original diver¿s watch, the legendary 62MAS, Seiko introduces into the Prospex collection a range of watches based on the fan-favourite SPB143 that feature multiple enhancements in technology, design, and construction. The new SPB451J is powered by one of Seiko¿s latest in-house movements, Calibre 6R55, which has a power reserve that extends to 72 hours, or three full days. This marks the first time that Calibre 6R55 has appeared in the Prospex collection. The new watches are further enhanced to ensure water resistance to 300m, a first for the Prospex collection¿s non-saturation diver¿s watches.

A change in the location of the date window from the three o¿clock position to the space between four and five o¿clock now allows a more symmetrical design and more space to be filled with Lumibrite, ensuring high legibility even in dark conditions. The watch has been redesigned to be more compact, with a diameter of 40mm, lug-to-lug length of 46.4mm, and thickness of 13mm, while maintaining the reliability, safety, and ease of use required of a Seiko diver¿s watch.