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Grand Seiko explores the “Nature of Time”

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September 2021


Grand Seiko explores the “Nature of Time”

Two creations powered by a new Spring Drive movement, Caliber 9RA2, join the celebration of the anniversary of the company’s founding. The delicate texture of the movement’s finish reflects the frost that winter brings to the forests in Shinshu where all Spring Drive watches are made.

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n February 2021, Grand Seiko introduced a high-beat watch whose dial design incorporated a series of delicate lines that echoed the intricate nature of tree-rings. This watch celebrated the 140th anniversary of the company’s founding and won high praise from watch fans worldwide thanks to the organic feel of the dial and the powerful yet understated charm of the overall design.

A first new creation with the same distinctive dial and case design powered by a new Spring Drive movement, Caliber 9RA2, joins the celebration of the anniversary of the company’s founding.

The watch is powered by the new Grand Seiko Spring Drive 5 Days Caliber 9RA2, which inherits all the performance characteristics of the Spring Drive Caliber 9RA5 introduced last year in celebration of the 60th anniversary of Grand Seiko.

The new setting of the watch hands and the power reserve indicator moved to the movement’s back gives the watch a slender and elegant feel upon observation of the dial and enhances the dial’s exquisite craftwork signature to Grand Seiko.

Grand Seiko explores the “Nature of Time”

The understated charm and beauty of the movement is revealed for the first time through the sapphire crystal case back and captures the uniquely Japanese aesthetic for which Grand Seiko is renowned. The delicate texture of the movement’s finish reflects the frost that winter brings to the forests in Shinshu where all Spring Drive watches are made. The bridge lines and hole edges are diamond-cut to reflect light from all angles and the jewels and tempered blue power reserve indicator add a quiet sparkle thatis a delight to behold.

Caliber 9RA2 allows the new timepiece to be slimmer than any other current automatic Spring Drive creation. The movement achieves its slimness thanks to the re-design and re-positioning of the Magic Lever. This Offset Magic Lever is positioned away from the center of the movement to reduce its thickness.The new setting of the hands also contributes to the slender profile of the watch.

Grand Seiko explores the “Nature of Time”

The movement may be slim but it has enhanced rigidity and shock resistance thanks to the new layout of the gear train towards the center of the movement and the One-Piece Center Bridge that holds them together.

Caliber 9RA2 incorporates two barrels, one larger and one smaller, that deliver a power reserve of up to 120 hours. The ±10 seconds per month accuracy rate is made possible by developing a new IC with a built-in temperature sensor, and to the selection of highly stable quartz oscillators that have gone through a three-month aging process. The quartz oscillator and temperature sensor are vacuum sealedinto a single package to eliminate even the slightest temperature difference between the two to maintain the watch’s accuracy at the highest possible level.

Grand Seiko explores the “Nature of Time”

Grand Seiko also commemorates the 140th anniversary of the foundation of Kintaro’s company with another creation powered by the new Spring Drive 5 Days Caliber 9RA2. The watch’s dial is inspired by the calm watersof Lake Suwa that lies close to the Shinshu Watch Studio where the watch is made.

Grand Seiko explores the “Nature of Time”

The patterned dial evokes the gentle sway of the water surfaceof Lake Suwa, with ripples and shallow waves that create a pleasing sparkle at whichever angle the dial catches the light. Combined with the smooth sweeping movement of the seconds hand unique to Spring Drive, the dial captures the tranquil and seamless passage of time. The seconds hand and Grand Seiko letters are in a gold color that echoes the morning sunrise shimmering on the lake’s surface.

The new Spring Drive 5 Days Caliber9RA2 inherits all the performance characteristics of the Spring Drive Caliber 9RA5 introduced last year in celebration of the 60thanniversary of Grand Seiko. The new setting of the watch hands and the power reserve indicator moved to the movement’s back gives the watch a slender and elegant feel upon observation of the dial and enhances the dial’s exquisite craftwork signature to Grand Seiko.

Grand Seiko explores the “Nature of Time”

This commemorative limited edition watch’s design is true to the Grand Seiko Style defined back in 1967 with the celebrated 44GS but its heritage is combined with a contemporary feel that perfectly expresses the quiet but strong character of Grand Seiko. Its powerful hands andgrooved, prominent markers ensure perfect legibility.

Grand Seiko explores the “Nature of Time”

The Zaratsu polished, distortion-freemirror finish and delicate hairline finish alternate,giving the case a quiet and harmonious glow. The case has wide lugs and a low center of gravity that ensures that the watch sits easily and securely on the wrist.

Grand Seiko explores the “Nature of Time”

The watch will be available as a limited edition of 2,021 at the Grand Seiko Boutiques and selected retail stores worldwide in December 2021.

Grand Seiko explores the “Nature of Time”

TECHNICAL SPECIFICATIONS: Spring Drive 5 Days Caliber 9RA2

  • Driving system: Automatic
  • Accuracy: ±0.5 seconds per day (±10 seconds per month)
  • Power reserve: 5 days (120 hours)
  • Number of jewels: 38
  • Calibre diameter: 34.0mm, Thickness: 5.0mm
Grand Seiko explores the “Nature of Time”

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