GRAND SEIKO FINDS PRECISION IN NATURE AND ENGINEERING

Grand Seiko’s latest introductions at Watches and Wonders 2026 centre on three very different expressions: the SBGH376J Sakura Wakaba in yellow gold, the compact SBGX363 and SBGX365 Hana Ikada, and the Spring Drive U.F.A. Ushio 300 Diver as part of the Evolution 9 collection.

Each takes a familiar foundation and pushes it in a more focused direction. Rather than expanding its range, the brand refines it. The high-beat mechanical, the 9F quartz, and Spring Drive are each given space to develop on their own terms. What links them is a shared discipline. Whether through dial, case, or movement, every detail is resolved with a deliberate restraint that has come to define Grand Seiko’s way of working.

The SBGH376 returns to one of Grand Seiko’s most important case designs. Introduced in 1967, the 62GS marked the brand’s first automatic watch and established a design language that still defines it today. Its bezel-free construction allows light to reach the dial from multiple angles, reducing visual height while emphasising surface and texture.

Here, that architecture is rendered in 18k yellow gold for the first time in a non-limited execution. The case frames a light green dial inspired by sakura wakaba, the moment when fresh leaves emerge between cherry blossoms at the close of the season.

This is not a literal depiction. The dial shifts subtly with changing light, moving between tones and textures rather than fixing on a single colour. The absence of a bezel amplifies this effect, turning the dial into the focal point of the watch.

Inside, the high-beat Calibre 9S85 operates at 36,000 vibrations per hour, or at 5 Hz. The elevated frequency improves stability against positional changes and shock, while maintaining a daily rate of +5 to -3 seconds. What matters here is not just accuracy, but the way performance and appearance are aligned. The gold case, green dial, and high-frequency movement are all working towards the same idea: controlled refinement without excess.

If the SBGH376 represents continuity, the SBGX363G Hana-Ikada and SBGX365G Hana-Ikada Blue show how Grand Seiko continues to push its quartz platform forward. The introduction of the compact Calibre 9F51 allows the 62GS design to be realised at just 32.3 mm, a size previously out of reach for the brand’s quartz movements. This is not simply a reduction in scale. It is a rethinking of proportion.

SBGX363G draws from hana-ikada, the sight of fallen Spring cherry blossoms forming drifting clusters across water, interpreted in pale pink. As for SBGX365G, it's visualised in deep blue, evoking the same scene but under the radiant glow of the moonlight.

Technically, the 9F movement remains one of the most considered quartz calibres in watchmaking. The twin pulse motor provides the torque needed for larger hands. The backlash auto-adjust mechanism eliminates the slight tremor often seen in seconds hands. Each quartz crystal is aged and individually selected, with thermo-compensation ensuring stability across temperature changes.

Accuracy is rated to ±10 seconds per year. But more importantly, the movement is built for longevity, with serviceability and durability designed in from the outset. Despite being a quartz movement, it still stands as a statement that, when approached with the same discipline as mechanical watchmaking, it can achieve its own form of precision and presence.

The third direction moves firmly into technical territory with the Grand Seiko SLBG023 Ushio Blue and Grand Seiko SLBG025 Ushio Green. The Evolution 9 diver introduces the new Spring Drive Calibre 9RB1, which carries the U.F.A. (Ultra Fine Accuracy) designation. With an annual rate of ±20 seconds, it is among the most precise mainspring-powered movements.

This level of performance is achieved through a combination of vacuum-sealed oscillator construction, temperature compensation, and careful calibration at multiple points during production. The watch itself is equally focused. At 40.8 mm, it is the most compact diver in Grand Seiko’s line-up, made possible by the reduced size of the movement.

High-Intensity Titanium keeps the weight down while maintaining strength, and a 300-metre water resistance ensures it meets the demands expected of a professional diver.

The dial follows the ushio theme, reflecting the movement of tides through layered textures and gradients. Blue suggests depth and open water, while green draws from shallower coastal tones. Legibility remains central.

Faceted indexes, strong hand shapes, and controlled use of Lumibrite ensure clarity in all conditions. Even the clasp incorporates a micro-adjustment system, allowing precise changes in fit without tools. This is a diver defined less by extremity and more by balance. Accuracy, wearability, and clarity are treated as equal priorities.

Across these releases, Grand Seiko is not chasing novelty for its own sake. Instead, it is refining three pillars that have come to define the brand: high-beat mechanical, advanced quartz, and Spring Drive. What connects them is a consistent approach. Nature is not used as decoration, but as a starting point for texture, colour, and light.

Engineering is not presented as spectacle, but as a means to achieve stability and precision over time. The result is a collection that rewards closer inspection. Nothing here demands attention loudly. Instead, each piece reveals itself gradually, through detail, proportion, and the steady confidence of execution.