
Grand Seiko
Hi-Beat 36000 GMT
SBGJ201
A high-frequency GMT rooted in the landscapes of Iwate.
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Overview
The Grand Seiko SBGJ201 is a Heritage-collection GMT watch built around the in-house Cal. 9S86, a mechanical movement that beats at 36,000 vibrations per hour for exceptional accuracy and a fluid seconds sweep. Housed in a 40 mm stainless steel case, the reference pairs Grand Seiko's signature Zaratsu-polished surfaces with a richly textured dial inspired by the natural scenery of Mount Iwate in northern Japan. A dedicated GMT hand allows simultaneous reading of a second time zone, making the SBGJ201 as practical as it is visually distinctive.
History
The SBGJ201 was introduced in 2014 as part of Grand Seiko's growing Heritage line, a period during which the brand was steadily expanding its mechanical GMT offerings for an increasingly international collector audience. The Mount Iwate dial — evoking the snow-dusted slopes of the dormant volcano that overlooks the Shizukuishi Watch Studio — became one of the most recognisable signatures of this reference. Production continued through 2021, giving the model a seven-year run that cemented its place as a benchmark Hi-Beat GMT in the modern Grand Seiko catalogue.
Notable points
- Cal. 9S86 beats at 36,000 vph (10 beats per second), placing it in the high-frequency tier and contributing to a rated accuracy of +5/−3 seconds per day.
- The textured 'Mount Iwate' dial is crafted to evoke the rugged, snow-covered terrain of the Iwate volcano visible from Grand Seiko's Shizukuishi atelier.
- Zaratsu hand-polishing on the case creates the mirror-sharp, distortion-free surfaces that are a hallmark of Grand Seiko finishing.
- The independently jumping GMT hand displays a second time zone against a 24-hour scale on the bezel, allowing instant day/night distinction.
- Produced from 2014 to 2021, the SBGJ201 represents a significant chapter in Grand Seiko's modern mechanical GMT history.
Specifications
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