Grand Seiko

Hi-Beat GMT SBGJ237

Reference Number :

SBGJ237

Series : Sport

Retail: $7,200

(As of: 02/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Grand Seiko. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThe Grand Seiko SBGJ237 is the perfect watch for the globetrotter with an unyielding desire for mechanical perfection and a taste for subtle, luxurious design. Its blue dial, a canvas of sapphire elegance, dances between different shades as light catches its facets, echoing the ever-changing hues of the deep ocean. This is a watch not merely for telling time, but for marking your journey across time zones and through life's adventures. Its GMT hand, a silent arrow of precision, keeps you tethered to your home no matter how far you roam. Paired with the rotating sapphire bezel, the watch offers the ability to track three separate time zones. This is not just a watch; it's a statement of intent–a declaration that you are a citizen of the world, equally at home on the bustling streets of Tokyo as in the serene Swiss Alps. The subtle sophistication of this Hi-Beat GMT is not screaming for attention, but, for those who are in the know, commands respect. It's a symbol of refined taste, a testament to a life lived fully and without compromise.

DescriptionThe Grand Seiko SBGJ237, a member of the esteemed Sport Collection, is an exceptional example of precision engineering and aesthetic refinement. Encased in robust stainless steel, the watch's exterior is meticulously crafted to withstand the rigors of an active lifestyle while maintaining an air of sophistication. The case back is a screw-down design, contributing to the watch's impressive water resistance of 20 bar (approximately 200 meters), rendering it suitable for a wide array of water-based activities. The case dimensions are substantial yet balanced, with a diameter of 44.2mm, a lug-to-lug measurement of 50.6mm, and a thickness of 14.4mm. Protecting the intricate dial is a dual-curved sapphire crystal, treated with an anti-reflective coating on the inner surface to enhance legibility under various lighting conditions. The hands, indexes, and bezel are coated with LumiBrite, ensuring visibility in low-light environments. The bezel itself is a bidirectional rotating design, marked with a 24-hour scale, which enables the tracking of a third-time zone. The bracelet, also constructed from stainless steel, features a 21mm width and a secure three-fold clasp with a push-button release. The total perimeter of the band measures 201mm, ensuring a comfortable fit for most wrist sizes. The timepiece boasts a weight of 188 grams, a testament to its solid construction and quality materials.

Powering this remarkable timepiece is the Caliber 9S86, a self-winding mechanical movement with manual winding capability. This high-frequency movement, beating at 36,000 vibrations per hour (10 beats per second), delivers exceptional accuracy with a mean daily rate of +5 to -3 seconds per day. This level of precision is maintained even when adjusting for different time zones, thanks to the calendar-linked time difference adjustment function. The movement's performance is measured in six positions over 12 days under controlled conditions before assembly in the case, ensuring its reliability. The power reserve of approximately 55 hours provides ample autonomy for daily wear. The movement houses 37 jewels, contributing to its smooth operation and longevity. Notably, the watch features a GMT complication, allowing the wearer to track a second-time zone via the white GMT hand. The white hand indicates the time on a 24 hour scale. This feature, combined with the rotating bezel's ability to display a third-time zone, makes the SBGJ237 an ideal companion for global travelers. Additional features include a screw-down crown for enhanced water resistance, and a magnetic resistance of 4,800 A/m, protecting the movement from the detrimental effects of magnetic fields.

GenderMen

SignaturesGrand Seiko

Country of OriginJapan

Case Size44.2 mm

MovementAutomatic

Caliber9S86

FunctionsHours, Minutes, Seconds, Date, GMT

Power Reserve55 Hours

Case MaterialsStainless Steel

Bezel MaterialsSapphire

Lug MaterialsStainless Steel

Case BackSolid