Sport Collection Automatic Spring Drive 3-Day GMT SBGE307

A Spring Drive GMT that conveys the majesty of the lion through its durable design



Sport Collection



Despatch will take place August/September 2024 with full tracking


A Spring Drive GMT that conveys the majesty of the lion through its durable design

From the time of its first watch in 1960, Grand Seiko has used the lion, the so-called “king of beasts,” as a powerful symbol. Embodying the dignity of the regal creature, with all of its imposing and fierce presence, this model’s strong appearance recalls the animal’s powerful forelimbs, claws, and mane. The lugs, intended to evoke lion claws, have a bold and distinctive shape and appearance, and the case rests firmly yet comfortably on the wrist. The reddish-brown GMT hand quietly makes its presence known on the shining white dial. The watch has a high level of practicality befitting a sports model. This can be observed in the Lumibrite coating on the hands and indexes, which makes it easy to read at night, as well as the formidable water resistance of 20 bar. The watch is powered by the highly precise Spring Drive Calibre 9R66 with GMT, delivering a precision of ±15 seconds per month (equivalent to ±1 second per day).

Any purchase through our Grand SEIKO Online Store has a 5 Year limited guarantee


Case Material: Titanium
Glass Material: Dual Curved Sapphire Glass with Anti-Reflective Coating on the Inside
Case size: Diameter: 44mm
Thickness: 14.9 mm
Length: 50mm
Case Colour: Silver & Black
Band/Bracelet: Bracelet - Titanium
Band Colour: Silver
Band Reference: D315AB
Dial Colour: White Textured
Hand Indicators: Hour, Minute, Seconds, 24-Hour
Calendar Indicators: Date
Dial Markers: Batons
Crown: Screw Down
Rotating Bezel: Two Way
Calibre no.: 9R66 Instructions
Movement Type: Spring Drive - Powered By The Movement of the Wearer
Accuracy: ±1 second per day / ±15 seconds per month (average)
Battery Life: 72 Hours Power Reserve
Battery: N/A
Display: Analogue
Dual Time: Yes - 24 Hour Hand Can Be Adjusted To Second Time Zone. Bezel Can Be Set To A Third Time Zone.
Water Resistance: 200 Metres
Other details / Features:
  • Hand Winding
  • Power Reserve Indicator

A dial that evokes a lion’s mane glimmering in the rays of the sun

The dial design consists of a pattern that calls to mind the mane of a lion. The reddish-brown of the GMT hand contrasts with the shining white dial, ensuring easy legibility at a glance. With Lumibrite applied to its tip, the GMT hand can be read easily even in the dark.

Note: With GMT (Greenwich Mean Time) functionality, the local hour hand and the 24-hour hand can be set to different time zones, allowing the wearer to track the time in two locations at once.

Calibre 9R66

With a power reserve of 72 hours and accuracy of ±15 seconds per month, this was the first Spring Drive movement to incorporate a GMT mechanism.

Details of Calibre 9R66

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