A new color-changing dial captures the shifting hues of a Shinshu
sunrise against the Hotaka landscape.

The vast Hotaka mountain range rises in the Shinshu region of central Japan, where all Grand Seiko Spring Drive creations are made. The sun reflecting off this soaring landscape at dawn creates beautiful mountain scenery with ebullient colors transforming from pink to orange as the early morning progresses.

The year 2024 marks the 20th anniversary of the first Grand Seiko watch powered by the 9R Spring Drive movement series, which powers all Grand Seiko Spring Drive watches. In celebration of this milestone, a new Spring Drive Chronograph GMT inspired by this mountainous landscape in summer is born. The watch has been made possible by a new dial-processing technology that expresses the Japanese appreciation for the delicate transition of time as seen through the changing colors of summer mornings in this special place.

A new dial manufacturing technique

On summer mornings, for just 30 minutes before and after sunrise, the sun illuminates the peaks of the Hotaka mountain range in a particularly special way. The color-changing dial, which represents this momentary light show, is made possible by a patented dial-coating process to be known as “Optical Multilayer Coating.” Instead of traditional techniques to color the dial, the new technology uses a physical vapor deposition process. Several layers of nanoscale film create an effect in which the dial exhibits a different hue depending on the angle of view. Combined with the silent glide motion of the seconds hand, the transitioning dial colors bring a new dimension to the idea of the nature of time.

Showcasing the eternal values of Grand Seiko in both function and beauty

The newest Spring Drive Chronograph GMT features a powerful, angular case design inspired by the lion, a symbol of the brand since the first Grand Seiko watch in 1960. Synonymous with strength and courage, the lion represented the aim of the original Grand Seiko team to create the very best timepiece of which they were capable in terms of accuracy, legibility, durability, and beauty, and these values remain today. The lion’s presence is demonstrated in every detail of the new watch, such as the angularity of the case and the claw-like, hairline-finished lugs, which provide a point of contrast to the Zaratsu-polished surfaces.

Water resistant to 20 bar, the watch is made to ensure the highest level of performance in any sporting situation. The hour and minute hands are designed for heightened legibility, and the wide indexes further enhance the superior legibility for which Grand Seiko is renowned. The case and bracelet are made of high-intensity titanium, which is about 30% lighter than stainless steel and has a brighter color. The bracelet, too, is designed for comfort, with thick, H-shaped links that easily conform to wrists of all sizes. The hour and minute hands, as well as the hour markers, have Lumibrite that glows green, while the GMT hand and the numbers on the bezel glow blue, enhancing the watch’s legibility in dark conditions.

Grand Seiko Sport Collection
Caliber 9R 20th Anniversary Limited Edition: SBGC275

Spring Drive Chronograph GMT Caliber 9R96
Driving system: Automatic
Accuracy: ±10 seconds per month (±0.5 seconds per day)
Power reserve: 72 hours
GMT hand
Chronograph up to 12 hours
Number of jewels: 50

Specifications
High-intensity titanium case and bracelet
Three-fold clasp with push-button release, secure lock, and extender
Dual-curved sapphire crystal with anti-reflective coating
See-through screw case back
Screw-down crown
Water resistance: 20 bar
Magnetic resistance: 4,800 A/m
Diameter: 44.5mm, Thickness: 16.8mm
Approximate recommended retail price: $13,400
Limited edition of 700

For further information:
https://www.grand-seiko.com/us-en/collections/sbgc275g

Note:
The specifications and price information in this release are as of the published date and are subject to change.