Grand Seiko’s pursuit of precision, practicality, and beauty continues its forward march with the SLGC007 Tentagraph, a mechanical chronograph crafted in the Evolution 9 (otherwise known as E9) Style. This timepiece embodies the essence of Grand Seiko’s philosophy, where technical innovation meets the aesthetic beauty of Japan.

The SLGC007 builds upon the foundation set by the SLGC001, offering a new interpretation of Grand Seiko’s high-performance mechanical chronograph. More than a technical marvel, it is a work of art inspired by the natural beauty of Japan. Its dial reflects the serene yet dynamic winter landscape of Mt. Iwate, where fresh snow meets the crisp blue sky. The snow-blue hue and embossed ridgeline pattern capture the mountain’s breathtaking scenery, creating a sense of depth and tranquility, while the black sub-dials represent the mountain’s surface peeks. This striking texture, combined with Grand Seiko’s broad hands and faceted indexes, ensures exceptional legibility while maintaining a refined aesthetic.

Housed in a high-intensity titanium case, the watch maintains a lightweight yet robust structure, making it comfortable for everyday wear. The E9 design language enhances ergonomics with a lower center of gravity for an optimal wrist presence. Enhanced Lumibrite ensures visibility in low-light conditions, further emphasizing Grand Seiko’s commitment to practicality.

Continuing the legacy of high-frequency precision established by the 9SA5 movement, the Tentagraph is named after the features of the revolutionary Caliber 9SC5, first introduced in the SLGC001. Designed for unparalleled performance, this movement boasts 10 beats per second, ensuring stable accuracy even over extended use. The Dual Impulse Escapement, twin barrels, and Free-sprung Balance maximize efficiency and power reserve, allowing the Tentagraph to run for approximately three days even when the chronograph function is engaged.

The chronograph mechanism itself is designed for precision and reliability. A vertical clutch ensures smooth operation without impacting timekeeping accuracy, while the column wheel offers a firm and tactile actuation of the pushers. Crafted with MEMS manufacturing technology, the components achieve an exceptional level of durability and efficiency.

The SLGC007 Tentagraph is a seamless blend of innovation and artistry, offering a mechanical chronograph experience that is both cutting-edge and deeply rooted in Grand Seiko’s heritage. With its precision-engineered movement and a dial that captures the beauty of Japan’s natural landscapes, it stands as a testament to Grand Seiko’s relentless pursuit of horological excellence.

The SLGC007 Tentagraph will be available at Grand Seiko Boutiques and authorized retailers starting May 2025.