WATCH BUYER · AI
Grand Seiko Hi-Beat 36000 GMT — SBGJ201

Grand Seiko

Hi-Beat 36000 GMT

SBGJ201

A high-frequency GMT rooted in the landscapes of Iwate.

Estimated market value
$5,000
Confidence: High
Original retail: $6,300

An estimate from current market data — not an offer. Your actual value depends on condition, completeness, and authentication.

Get an instant offer

Free insured shipping. Paid within 48 hours of inspection.

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

Brand
Grand Seiko
Collection
Heritage
Reference
SBGJ201
Years of production
2014 – 2021
Case
40mm stainless steel
Case material
Stainless steel
Case diameter
40 mm
Movement
Cal. 9S86 Hi-Beat 36000
Crystal
Sapphire
Dial
Patterned "Mount Iwate" dial with GMT hand
Bezel
Polished steel
Bracelet / strap
Steel bracelet
Water resistance
100 m
Power reserve
55 h
Complications
gmt, Date
Type
GMT
Worn as
Men's
Also known as
Mount Iwate

Related watches