Grand Seiko Evolution 9 Diver Titanium Spring Drive "Ushio" blue dial titanium bracelet 43,8 mm

The Evolution 9 Style

In 2020, Grand Seiko introduced a new design philosophy called Evolution 9 Style. While it preserves the fundamental principles of Grand Seiko Style, the design philosophy that has guided Grand Seiko since 1967, but adapts them for the new generation by setting new standards in legibility, aesthetics and comfort, while pushing its already impressive designs and technology to new levels. The refinement of the Evolution 9 series includes the deployment of new materials to achieve more sophisticated and comfortable watches. Take for example the SGLA015's titanium case and bracelet, made from a lighter, brighter high-intensity titanium.

A high-tech, lightweight, ultra-precise mechanical dive watch

Grand Seiko designed this watch with the Kuroshio Current, also known as the Black Stream, in mind. Indeed, the oceans surrounding the Japanese archipelago are agitated by particularly powerful currents, the largest of which is the Kuroshio Current, "black stream" in Japanese. This, one of the most important ocean currents in the World, passes along the Japanese coast to reach the North Pacific.

This new version with a blue dial, is a variant of the "Ushio" dial originally presented in black in 2022. This reference SLGA023 is the latest dive watch from Grand Seiko.

The case of this SLGA023 measures 43.8 mm in diameter, 13.8 mm thick and 51.5 mm from lug to lug. It is made entirely of high-intensity titanium to provide increased resistance to scratches and corrosion, while ensuring a significant reduction in weight compared to steel, which guarantees extreme comfort on the wrist. Like all diving watches, this Grand Seiko is water resistant to a depth of 200 meters. The bezel insert is ceramic, which is a first for a GS dive watch.

Watch lovers all know, the finishing on Grand Seiko models are always exceptional. This timepiece proves it once again, with its case featuring an attractive mix of Zaratsu-style polished and satin-finished surfaces. This complex contrast of finishing techniques brings the watch and its geometry to life, and highlights the unique qualities of titanium, between light and shadow. One only has to look at the case shapes to see this, especially at the crown guard, which are unlike anything we have seen before.

The SGLA015 represents everything that Grand Seiko is known for and points to the future of the brand as it continues to refine and revolutionize the world of watchmaking!

Contrast, depth and LumiBrite

The readability of this timepiece is exceptional, thanks in part to the deep contrast between the dial and hands, the precision workmanship, and the LumiBrite that generously covers the hands and markers. In addition, each hand has a different shape, as does the 12 o'clock index, making it possible to read the time accurately at a glance, even at depth where legibility is paramount. The use of a sapphire crystal with an anti-reflective coating on the inner side also helps to eliminate excessive reflections on the dial.

Small details but extremely important when it comes to a professional dive watch!

An exceptional Spring Drive caliber

This dive watch is powered by a Spring Drive movement, a unique watchmaking technology exclusive to the Seiko Group. It generates energy similar to that of traditional mechanical watches but combines it with an electronic regulator to provide a level of precision unmatched by any other mechanical watch. The development of the Spring Drive was only possible because Grand Seiko is one of the few watchmakers to master both mechanical and quartz watchmaking. In addition to having an accuracy of ±10 seconds per month, this movement is very fine thanks to its "Offset Magic Lever". The movement is equipped with a power reserve indicator located on the dial to provide additional safety when diving. Precisely, this caliber delivers a comfortable 120-hour power reserve thanks to its double barrel.