Inspired by the end of Autumn, Japanese watchmaker Grand Seiko has introduced two new special edition timepieces to its Heritage Collection. The Grand Seiko Soko U.S. Special Edition commemorates the continuation of Japan’s twenty-four sekki Luna Calendar, signifying nature’s ever-changing seasons, with each timepiece ? in both its outer design and its movement’s technology ? paying homage to Japan and its “natural and continuous” flow of time. 

The Grand Seiko Soko U.S. Special Edition commemorates Japan’s twenty-four sekki Luna Calendar.

Both models feature green accents on the seconds hand and power-reserve indicator, while the subtle bamboo-stalk texture of the vertically oriented dial is evocative of the Kyoto forest in Japan, named Arashivama.
The vertical texture of the dials reflects bamboo stalks of the Kyoto forests.

Together, these 39-mm timepieces pay tribute to the moment in nature when the green hues become animated, with the contrasting appearance of “light” as seen on the silver-dial model (Ref. SBGA427), and the “shadow” motif seen on the gray dial (Ref. SBGA429) ? both displaying the high level of Japanese craftsmanship that has become expected of Grand Seiko.

The green accent colors featured on the seconds hand and power reserve indicator symbolize the life of the Arashiyama.

Visible through the watch’s open caseback is the Spr...