Grand Seiko pays tribute to Seiko’s founder Kintaro Hattori on his 160th birth anniversary with a limited edition timepiece.
Seiko’s founder Kintaro Hattori was born in central Tokyo in 1860. In 1881, at the age of just 21, he set up his own company, “K. Hattori”, to wholesale and retail imported timepieces and, just twelve years later, he established a factory which he called Seikosha, ‘The house of precision’, to produce his own clocks and, later, watches.
To mark the 160th anniversary of his birth, Grand Seiko created a limited edition Spring Drive watch. It was made by the elite team of watchmakers at the Micro Artist Studio. The watch features a softly rounded case made of Platinum 950 and it is Zaratsu polished to a perfect distortion-free finish. The sapphire crystal glass is dual-curved and each surface is shaped to ensure perfect legibility. With a thickness of just 9.6mm, the platinum case of the watch measures 37.5mm diameter.
The intricate pattern on the delicate dial surface offers varying depths. A tradition since the 1960’s, a star mark located at six o’clock denotes that the indexes are of solid gold. The interplay of light and shadow is an essential part of the signature of every Grand Seiko. The application of seconds markers enhance the legibility. The indexes and the hour and minute hands are in 14K white gold and are specially cut to create a sharpness that amplifies the enduring beauty of the gold.
The watch is powered by Caliber 9R02 which is assembled, adjusted and finished by hand by the craftsmen and women of the Micro Artist Studio. It delivers a power reserve of 84 hours thanks to the Dual Spring Barrel in which two independent thin, long mainsprings are set in parallel in a single barrel, and the Torque Return System.
When the mainspring has been fully wound and the torque output is at its highest, approximately 30% of the available power is not needed to maintain the precision of the watch, and is in effect wasted in a normal movement. The Torque Return System uses this energy to rewind the mainspring, resulting in an increase in the power reserve. In Caliber 9R02, this system is activated for 48 hours after the mainspring has been fully wound.
The barrel shape echoes the bellflower that is the symbol of Shiojiri where the studio is located. The caliber also incorporates an 18k yellow gold plaque which carries the engraved words “Micro Artist”. These words can be replaced with any other words on request.
The Grand Seiko Kintaro Hattori 160th anniversary watch will be available in January 2021 as a limited edition of 50 in the Grand Seiko boutiques worldwide.
Collection: Grand Seiko Masterpiece Collection
Model: Kintaro Hattori 160th Anniversary Limited Edition
Spring Drive Caliber 9R02
Driving system: manual winding
Power reserve: 84 hours
Accuracy: ± 1 second per day (± 15 seconds per month)
Dual-Spring Barrel and Torque Return System
Power reserve indicator
Number of jewels: 39
Platinum 950 case and clasp
Dual-curved sapphire crystal with anti-reflective coating
See-through screw case back
Water resistance: 3 bar
Magnetic resistance: 4,800 A/m
Diameter: 37.5mm, Thickness: 9.6mm
Crocodile strap with three-fold clasp with push button release
Approximate recommended retail price in Europe: €106,000
Limited edition of 50 available exclusively at the Grand Seiko Boutiques