Grand Seiko SLGB006 " Dawn of the Ice Forest" and the World's Most Precise Spring-Driven Movement at Watches & Wonders 2026
At Watches & Wonders 2025, Grand Seiko unveiled a groundbreaking automated watch with a significant exposure in timekeeping accuracy: the actual 9RB2 automatic movement, the fact that brand claims is the most specific in its class. A year later, with Watches & Wonders 2026, this movement will inicio in a limited-edition watch having a gold case-the first time this particular movement has been made in precious metal. The dial design is actually inspired by the snow-capped woods of Shinshu, the region where movement was born. We will at this point take a closer look at the Grand Seiko SLGB006 " Dawn of the Ice Forest" see and its 9RB2 movement.
The Spring Drive 9R65 Movement: The World's Most Precise Spring-Driven Movement
Grand Seiko patented the Spring Generate movement in the late 1970s along with first introduced it 23 years ago. This movement employed an absolutely different regulating system via its Swiss counterparts' kinetic systems. It lacked a regular escapement, instead using a pulley system regulated and braked by a quartz oscillator in addition to electronic control circuitry. Infamously, the entire Spring Drive program required no battery; the quartz module was entirely power by the mainspring. In 2004, this specific technology reached its zenith with the introduction of the Spring Drive Calibre 9R65 motion. This movement differed drastically from the brand's previous activities: it not only featured programmed winding and a 72-hour reserve of power but also a regulating method capable of achieving an accuracy and reliability of ±15 seconds a month.
Throughout 2025, at Watches & Wonders, Grand Seiko launched another major innovation for you to its Spring Drive movements: the Calibre 9RB2, an auto content generated movement with a 72-hour reserve of power, also featured in the brand-new Grand Seiko SLGB006 " Ice Forest at Dawn" watch. The Calibre 9RB2 is named " Spring Drive UFA, " where " UFA" stands for " Extra Fine Accuracy. " Its veracity is ±20 seconds, not necessarily daily, weekly, or regular monthly, but annually. With this dangerous of precision-equivalent to about ±3 seconds per month, 12 seconds more accurate when compared with its predecessor-Seiko claims to have got the most accurate mainspring-driven activity to date.
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This ±20-second-per-year (approximately ±3-second per month) precision is achieved through the self-developed quartz crystal oscillator whose frequency has been maintainged over a three-month period. Later, the oscillator is vacuum-sealed with a newly developed energy-efficient integrated circuit to minimize outer interference. Temperature compensation likewise plays a crucial role: ahead of assembly, each quartz very is measured at distinct temperatures, allowing the mobility to compensate for even the tiniest temperature variations that would normally affect its accuracy.
The Design and Construction on the New Seiko Grand Seiko SLGB006 “Dawn in the Cold Forest” Since 2004, Spring Push watches have been meticulously constructed by watchmakers at the Shinshu Watch Workshop in Shiojiri City, Nagano Prefecture. Below, in these highly functional courses, every hour marker will be hand-set onto the switch, every 9R series Spring Drive movement is hand-crafted by skilled artisans, and each case is polished to your mirror-like finish according to the guidelines of the Zaratsu polishing strategy. The Shinshu Watch Work shop is located in the mountainous place of Japan, known for their harsh winters, and this unpleasant winter is the inspiration to the “Ice Forest” dial style of this new watch. Not far from the particular workshop lies the Kirimine Plateau, renowned for its " Ice Forest. " From the exceptionally cold winter, larch trees are blanketed throughout snow and ice, shimmering in the morning sun rays. Grand Seiko cleverly conveys the winter beauty of the Kirimine Plateau with its " Ice-cubes Forest" dial. Its layout concept originates from the Japanese basic principle of " mitate, " which interprets the landscape not through direct representation, but through color, application form, and surface texture. Typically the Grand Seiko SLGB006 " Ice Forest Dawn" watch features a finely textured call with subtle gradients in a deep black tone, featured with numerous reflective debris. Gold hour markers as well as hands contrast sharply while using dark dial, aiming to suggest the warm hues of any rising sun.
This Grand Seiko SLGB006 " Ice Forest Dawn" watch, with a diameter involving 37mm, is the first wristwatch of its size from the Evolution 9 series being crafted in 18K rare metal. It features a black crocodile leather strap and a corresponding gold triple-folding clasp using a push-button release mechanism. The lens case is 11. 4 mm thick and has a screw-down sapphire crystal case again. It is water-resistant to 100 meters (10 bar).
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