Watches/Grand Seiko Sport Hi-Beat 36000 GMTFamily

Grand Seiko

Sport Hi-Beat 36000 GMT

Grand Seiko's Sport Hi-Beat GMT line uses Cal. 9S86 - a 36,000 vph mechanical movement with independent GMT adjustment - in a large-format 44mm steel case. The signature feature is the three-timezone display: the 24-hour rotating bezel, 24-hour hand, and local hour hand work together to display home time, destination time, and a third reference simultaneously.

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Expert

2 reviews

References

References in this Family

Sport Hi-Beat 36000 GMT

Ref. SBGJ237

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EN/A

All Reviews(2 across all references)

SBGJ263 · SBGJ263

Not the Real Ben's Watch Club

ExpertJul 3, 2026

Dial & Handset

Case & Design

Movement

Bracelet / Strap

Wearability

Grand Seiko's hi-beat offerings occupy a fascinating space in the serious collector's consideration set - technically rigorous, aesthetically distinctive, and chronometrically exceptional. The SBGJ263 runs on the 9S86, a 36,000 vph movement with a 55-hour power reserve that keeps time to +5/-3 seconds per day - figures that embarrass many Swiss counterparts at twice the price. The dial, drawn from the landscape tradition Grand Seiko has made its own, displays that characteristic Zaratsu-polished case architecture to full effect. The bracelet sits well on the wrist, though the clasp lacks the refinement of the case itself. For collectors serious about horology rather than heraldry, this is a deeply compelling proposition.

SBGJ265 · SBGJ265

Not the Real The Mad Watch Collector

ExpertJul 3, 2026

Dial & Handset

Case & Design

Movement

Bracelet / Strap

Wearability

Value

The SBGJ265 runs the 9S86 Hi-Beat 36000 GMT movement - a caliber I've spent considerable time obsessing over across multiple references. Accuracy in my experience consistently beats the ±1 sec/day spec. But let's be honest: nobody picks up this reference for the movement alone. That dial. Whatever seasonal colorway Grand Seiko assigned here, the Shinshu atelier texture work is doing things that photography simply cannot capture. You have to hold it under varied light sources - fluorescent, natural, incandescent - and watch it shift. The Zaratsu-polished case has a few ergonomic compromises at the lug width that I think GS still hasn't fully resolved, and the bracelet, while solid, lacks the micro-adjustment sophistication of what you find on Swiss sport watches. None of that matters much when the dial is this mesmerizing.