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Grand Seiko Sport

Grand Seiko Sport

AutomaticSteel

Ref. SBGJ239

Collection: SportCase size: 44.2mmMovement: 9S86

The Grand Seiko Sport, reference SBGJ239, is a GMT watch with a 44.2 mm steel case. The green dial recalls late-summer woodland on the lower slopes of Mount Iwate. The lug-to-lug measurement is 50.6 mm, and case thickness is 14.4 mm; water resistance is rated to 200 metres. Self-winding calibre 9S86 has 37 jewels and approximately 55 hours of power reserve. Above the dial is a dual-curved sapphire crystal, with anti-reflective coating on its inner surface. The watch has a date display; the bezel rotates. The crocodile leather strap closes with a folding clasp with push button release.

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Last updated 9 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

CASE

Diameter

44.2mm

Thickness

14.4mm

Lug to Lug

50.6mm

Lug Width

21mm

Case Material

Steel

Water Resistance

200m

Crystal

Sapphire Crystal

MOVEMENT

Movement Type

Automatic

Caliber

9S86

Power Reserve

55h

Frequency

36,000 vph (5 Hz)

Jewels

37 jewels

DIAL

Dial Color

Green

BRACELET/STRAP

Bracelet/Strap

Crocodile Skin

Clasp Type

Fold Clasp

FEATURES & COMPLICATIONS

DateGMTLuminous handsLuminous indicesRotating BezelScrew-Down Crown

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