Name: Grand Seiko Sport SBGE307 44.5 mm White Dial
Brand: Grand Seiko
SKU: SBGE307
Availability: InStock

Specifications

A concise reference view of the case, dial, bracelet and movement details buyers compare first.

Diameter44.5 mm

MaterialHigh-Intensity Titanium, Caseback:High intensity titanium and sapphire crystal

DialWhite

CalibreGrand Seiko Spring Drive Caliber 9R66

Water resistance20 bar / 200 m

Case19 fields

Diameter	44.5 mm
Case length	50 mm
Thickness	14.9 mm
Lug To Lug	50 mm
Lug width	23 mm
Shape	Round
Weight	152 g
Material	High-Intensity Titanium, Caseback:High intensity titanium and sapphire crystal
Bezel	Fixed
Bezel material	High-Intensity Titanium
Bezel insert	High-Intensity Titanium
Crown	Screw-Down
Caseback	See-Through
Crystal	Dual-curved sapphire crystal
Crystal coating	Anti-reflective coating
Water resistance	20 bar / 200 m
Tested water resistance	200 m
Water Resistance Category	Dive
Magnetic resistance	4800 A/m

Reference details5 fields

Gender	Men's
Production status	Active
Origin	Japan
Warranty	3 years
Size category	Xl

Dial and bracelet9 fields

Dial	White
Dial finish	Katsu-iro blue-black palette
Date	Yes
Calendar	Simple
Lume	LumiBrite
Luminous display	Yes
Bracelet	Bracelet
Clasp	Folding Clasp
Micro Adjustment	Slide adjuster

Movement7 fields

Calibre	Grand Seiko Spring Drive Caliber 9R66
Calibre family	9R
Movement	spring-drive
Power reserve	72 hours
Jewels	30 jewels
Stop Seconds	Yes
In House Movement	Yes

Functions and complications4 fields

Complications	Date, GMT, Power Reserve
Complication count	3
GMT	Yes
Dive watch	Yes

Additional details1 field

Accuracy	±15 seconds per month

Price history

Recent price movement

Current medianSAR 44,489

Lowest medianSAR 37,405

Highest medianSAR 44,550

Median delivered estimate Lowest tracked offer Full-set pricing

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Tracking 14 daily market snapshots since July 2026. The solid line shows the median delivered estimate and the dashed line tracks the lowest available offer; the full-set plot shows pricing from qualifying offers listed with both original box and original papers.

Overview

About this reference

The Grand Seiko SBGE307 gives the Sport GMT a lighter titanium frame at 44.5 mm, with High-Intensity Titanium extending to the bezel. Its white dial is paired with a blue-black Katsu-iro palette, sapphire crystal, LumiBrite, and a see-through case back. At 200 metres, the watch has the scale and water resistance for active use, yet its contrasting colour work keeps the large case visually considered.

Spring Drive calibre 9R66 adds GMT, date, and a power-reserve display without changing the movement's calm operating character. The 30-jewel, single-barrel architecture runs for 72 hours and is rated to plus or minus one second per day. A 32,768 Hz reference oscillator governs the mainspring-powered system, while smooth central seconds provide the clearest sign of its electronic regulation.

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