CONCEPTPushing back the boundaries. Grand Seiko’s first mechanical diver's watch for saturation diving.
Designed to meet the most demanding challenges on earth, Grand Seiko’s Professional Diver’s watch combines both high accuracy and the reliability that the serious diver requires. It is designed for saturation diving to a depth of 600m.
With a titanium case, exceptional anti-magnetism, a high beat movement, a 55 hour power reserve and a construction that is designed to defy the elements, this is a watch that pushes back the boundaries of what a diver’s watch can deliver.
FEATURESA professional diver’s watch and the aesthetics of Grand Seiko
Form and function in harmony
With a distinctive clean edges appearing in a complex polyhedron and a distortion-free mirror surface created by our experts using Zaratsu polishing. The case has the beauAll the characteristics of the aesthetics of Grand Seiko are here. The distinctive clean edges and distortion-free mirror surfaces that only Zaratsu polishing can achieve, the supreme legibility that does justice to the precision of the movement and the durability that only a true, vertically integrated manufacturer can deliver. As soon as you see this watch, you know that it is Grand Seiko.
The one-way rotating bezel, perfected.
The grooves on the rotating bezel ensure a firm grip even with thick diving gloves. The bezel has excellent operability with a unique non-slip knurled finish. Each groove is carefully finished, making it easy to grip, but polished to be pleasing to the eye. Luminous markers at every ten seconds ensure the legibility that brings safety to the deep sea diver.
The dial is made of pure iron in order to protect the movement from the harmful effects of magnetism and delivers magnetic resistance of 16,000 A/m. In addition to safe and secure use during diving, every-day usability is also assured.
Components, built for long-term use
Every component is built to last, but all divers know that their watch needs regular maintenance, just like every other device on which his or her life may depend. This is why even the case, stem and crown are designed for secure servicing and even the bezel has a four-part design that makes for easy disassembly and re-assembly.
A bracelet designed expressly for diving
The bracelet has a sliding extension setting to accommodate pressure changes. Moreover, the use of high intensity titanium allows the links to be thick, strong and corrosion resistant while still light and easy to wear.
The deep Grand Seiko blue
The dial and strap of the limited edition are made in the exclusive color that signifies craftsmanship and tradition in Japan and is the signature color of Grand Seiko.
Titanium Bracelet and silicone strap. The choice is yours
The limited edition comes with an extra-strength silicone strap alongside the high-intensity titanium bracelet. The strap is in the deep Grand Seiko blue that matches the dial. Both the strap and bracelet are perfect for use in the sea or on land. They can be swapped with ease, and the choice is yours.