Grand Seiko Sport GMT Sea of Clouds Limited Edition SBGJ275
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SWhen the Caliber 9S debuted in 1998, it ushered in a new era of Grand Seiko mechanical watchmaking. An entirely new movement, Caliber 9S was designed from scratch to deliver the high precision and excellent durability for which Grand Seiko was already renowned. It became the platform on which all Grand Seiko mechanical watches would be built, giving rise to a full series of movements with different functions, escapements, and complications. These include the revolutionary Caliber 9SA5 with its Dual-Impulse Escapement and Grand Seiko’s first mechanical chronograph, the Tentagraph. And, of course, there have been GMT watches in a diverse range of styles, including several timepieces with Hi-Beat movements.
To celebrate 25 years of Caliber 9S mechanical watchmaking, Grand Seiko is releasing two new GMTs in its Sport and Elegance Collections, each drawing inspiration from the skies over Mt. Iwate in Iwate Prefecture, where all Grand Seiko mechanical watches are hand-assembled by skilled craftsmen and women.
The new Sport Collection GMT watch features a dial that illustrates the sea of clouds rarely seen at daybreak, when still, humid air forms dense clouds that overlap with one another to create a beautiful tapestry. The blue color is inspired by the sky over Mt. Iwate, the peak visible from the Grand Seiko Studio Shizukuishi, when it is blanketed by this sea of clouds.
The clear sapphire crystal case back, meanwhile, provides an invitation to view a titanium oscillating weight, which has been made a light shade of blue through an anodic oxidation process. This marks the first time that a Grand Seiko mechanical watch with water resistance to 20 bar has featured an exhibition case back. A rotating bezel with sapphire crystal in blue and white elevates the design while allowing for a total of three time zones to be read at once. And of course, a tried-and-trusted 9S mechanical movement powers the new creation. In this case, it is the Hi-Beat GMT Caliber 9S86, which provides stable accuracy thanks to its frequency of 36,000 vph, equal to ten beats per second or 5 Hz.
limited edition of 2,000
- SKU: SBGJ275
- Brand: Grand Seiko
- Case: Stainless Steel
- Case Size: 44.2 x 14.8mm
- Water-resistance: 20bar
- Crown: Screw-down
- Bezel: Bi-directional B-colour steel & sapphire glass
- Dial: Blue
- Movement: 9S86
- Movement type: Automatic High-Beat GMT
- Power Reserve: Approx. 55 hours
- Strap: Stainless Steel
- Clasp: Three-fold clasp with push-button release
- Warranty: 5 year manufacturer international guarantee