SBGJ237 Hi-Beat GMT

Hi-Beat GMT with midnight blue dial and sapphire crystal bezel.

The SBGJ237 is Grand Seiko's flagship Sport GMT — a 44.2mm steel tool watch with a stunning sunburst midnight blue dial and a striking blue-and-white sapphire crystal bezel. Powered by the Caliber 9S86 Hi-Beat movement at 36,000 vph, it tracks a third time zone via rotating bezel and delivers chronometer-grade accuracy. Zaratsu-polished case finishing and 200m water resistance round out a watch that competes with anything in its class.

Case Size	44.2mm
Movement	Cal. 9S86 Hi-Beat 36000 GMT, Automatic
Condition	Excellent
Type	Used
Reference	SBGJ237
Movement	Caliber 9S86, 37 jewels
Frequency	36,000 vph (5 Hz)
Accuracy	+5 / -3 sec per day
Power Reserve	55 hours
Case	Stainless steel, Zaratsu polished
Case Size	44.2mm × 14.4mm
Dial	Midnight blue sunburst
Bezel	Sapphire crystal, blue/white
Crystal	Sapphire
Water Resistance	200m (20 bar)
Bracelet	Steel, three-fold push-button clasp
Box & Papers	Full Kit