Grand Seiko has once again captivated the horology world with its latest showcase at Watches and Wonders 2025, introducing a groundbreaking new movement and five exquisite timepieces. The brand’s latest innovations highlight its relentless pursuit of precision and artistry.
The Caliber 9RB2: Redefining Mechanical Accuracy
The star of Grand Seiko’s presentation is the Caliber 9RB2, the first movement to earn the brand’s new U.F.A. (Ultra Fine Accuracy) designation. Unlike traditional movements measured in seconds per day, this caliber boasts an unprecedented annual accuracy of ±20 seconds, making it the most precise mainspring-powered wristwatch movement available today.
Key advancements include enhanced manufacturing techniques for its three-month-aged quartz oscillator and a newly designed integrated circuit. Additionally, Grand Seiko has introduced a regulation switch—a first for Spring Drive movements—allowing for precision adjustments during servicing.
Five Striking New Models
SLGC007 – Tentagraph Snow Blue
Inspired by the wintry landscapes of Mt. Iwate, this model features a mesmerizing dual-layered “Snow Blue” dial, symbolizing both deep snow and rugged terrain. The watch embodies resilience, reflecting Grand Seiko’s philosophy of perseverance.
SBGW323 – Purple Kiri Flower
A softer addition to the 44GS series, this watch honors the Paulownia tree (Kiri), Iwate’s prefectural flower. Its purple pressed-pattern dial evokes the delicate blossoms of early summer, blending elegance with regional pride.
SLGB001 – Ice Forest (65th Anniversary Limited Edition)
Celebrating Grand Seiko’s 65th anniversary, this 37mm titanium-cased watch is the smallest model powered by the 9R series. Its textured blue dial mimics the frost-covered trees of the Kirigamine Highlands, offering a striking yet refined aesthetic.
SLGB003 – Ice Forest
A companion to the limited edition, this version features a silver-tinged blue dial, evoking icy forests viewed through crisp winter air. It includes a titanium bracelet with a tool-free micro-adjustment clasp for enhanced comfort.
SLGC009 – Tokyo Lion Tentagraph
Closing the lineup is the bold Tokyo Lion Tentagraph, designed for adventure. Its sprinting lion motif dial, 3D sub-dials, and high-tensile rubber strap with a titanium clasp ensure durability and legibility for active wearers.
A Testament to Grand Seiko’s Mastery
With these releases, Grand Seiko reaffirms its position as a leader in precision engineering and artistic craftsmanship. Collectors and enthusiasts can expect these timepieces to set new benchmarks in luxury watchmaking.
