Grand Seiko Sport Hi-Beat Automatic GMT – SBGJ239
Grand Seiko Sport Hi-Beat Automatic GMT – SBGJ239
Grand Seiko Sport Hi-Beat Automatic GMT – SBGJ239

Grand Seiko Sport Hi-Beat Automatic GMT – SBGJ239

SKU: 001-545-09197

Regular price $6,600.00

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Grand Seiko’s SBGJ239 is part of the Sport Collection and is available only in the brands boutiques and salons. This sport watch is housed in a robust 44.2mm stainless steel case that is 50.6mm lug to lug and 14.4mm thick, with a curved sapphire crystal and screw down crown providing 200m of water resistance. This watch is powered by Grand Seiko’s Automatic Caliber 9S86, providing 55 hours of power reserve. This caliber is a high beat GMT movement, beating at 10 beats per second (or 36,000 per hour) with precision of +5 / -3 seconds per day, and is visible behind a sapphire case back. The “Flyer GMT” capability adds a 24-hour hand and allows you to adjust the main hour hand in one-hour jumps, backwards or forwards.

Grand Seiko is known for intricate dials and incredible casework utilizing Zaratsu polishing to create a mirror finish. The verdant green dial and long, bright red GMT are highly functional, while adding needed personality to the generally staid world of sport watches. The rotating, bi-directional green and white sapphire 24-hour bezel, hands, and dial are generously filled with Lumibrite for high legibility in all light conditions. A framed date window and crown at 4 o’clock provide a very comfortable wrist experience. This watch comes on an alligator strap with a push-button deployant clasp.

Little Treasury is an authorized Grand Seiko dealer, and we have this piece in stock, ready for delivery!
Band Strap with Deployant Clasp
Band Color Brown
Band Material Crocodile
Caliber 9S86
Case Material Stainless Steel
Case Size 44.2mm
Case Thickness 14.4mm
Caseback Engraved
Clasp Three-fold
Collection Sport
Crystal Sapphire Crystal
Dial Green
Function GMT
Gender Men's
Lug Width 21mm
Lug-to-Lug 50.6mm
Movement Hi-Beat Automatic
Power Reserve 55 Hours
Water Resistance 200m


Little Treasury Jewelers is the watch and jewelry store destination for the greater Baltimore-Annapolis area. Providing a piece for all of life’s occasions, offering a collection of wedding and engagement jewelry, fine timepieces, children’s jewelry, and gifts. With a selection of fine watches unequaled in the area, international jewelry designers, and a repair facility on the premise, Little Treasury is truly a “hidden gem” in Maryland.