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Grand Seiko Automatic GMT "Moondrop" SBGM257

Regular price
$6,800.00
Sale price
$6,800.00
Regular price
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The Grand Seiko SBGM257G offers refined GMT functionality in a classic 39.5 mm stainless steel case with polished finishing. Powered by the Caliber 9S66 automatic movement it delivers 72 hours of power reserve and precise timekeeping. The dial is clean and elegant with a 24-hour GMT hand and date window. With sapphire crystal, exhibition case back, and luxurious leather strap the watch pairs global timekeeping with everyday sophistication — perfect for travelers and watch enthusiasts alike.

Case Thickness: 14.1 mm
Case Diameter: 39.5 mm
Lug-to-lug: 46.9 mm

Why Buy From 1881?
SEIKO WARRANTY
All Seiko Watches Come with a Full 3 Year Factory Warranty
GRAND SEIKO Warranty
All Grand Seiko Watches Come with a Full 5 Year Factory Warranty
FINANCING
No Interest Financing Available
Seiko

SBGM257

Description

The Grand Seiko SBGM257G delivers refined sophistication and travel-ready functionality in an elegantly balanced mechanical watch. Housed in a 39.5 mm stainless steel case with a comfortable 46.9 mm lug-to-lug span and well-proportioned thickness, its polished surfaces highlight masterful finishing. The dial features a clean design with a 24-hour GMT hand that allows tracking of a second time zone. A date window and subtle dial textures complete the classic Grand Seiko look, making this watch ideal for both global travelers and daily wearers seeking understated luxury.

At its heart is the in-house Caliber 9S66 automatic movement, renowned for reliability and mechanical excellence. The movement offers a generous 72-hour power reserve, manual winding support and accurate timekeeping. The sapphire crystal with inner anti-reflective coating ensures clarity, while the screw-down crown and solid case back provide durability. Whether used for business travel or elegant evenings, the SBGM257G combines heritage craftsmanship, precise engineering and refined styling in a timeless package.

Technical Specifications

Caliber no: 9S66

Movement Type: Automatic with manual winding

Power reserve: Approximately 72 hours

Mean daily rate: +5 to –3 seconds per day

Water resistance: 3 bar (splash resistant)

Weight: 92 g

Case back: Exhibition screw-down case back with sapphire insert

Glass Material: Box-shaped sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

Band width: 19 mm

Band Material: Crocodile leather strap

Clasp type: Three-fold clasp with push-button release

Case Thickness: 14.1 mm

Case Diameter: 39.5 mm

Lug-to-lug: 46.9 mm

Features:

True GMT function with a 24-hour hand for second time zone tracking

Instant date change at midnight

Exhibition case back showcasing the beautifully finished movement

Zaratsu polished case surfaces for mirror-like finish and elegant light play

Box sapphire crystal with anti-reflective coating for excellent readability

Description

The Grand Seiko SBGM257G delivers refined sophistication and travel-ready functionality in an elegantly balanced mechanical watch. Housed in a 39.5 mm stainless steel case with a comfortable 46.9 mm lug-to-lug span and well-proportioned thickness, its polished surfaces highlight masterful finishing. The dial features a clean design with a 24-hour GMT hand that allows tracking of a second time zone. A date window and subtle dial textures complete the classic Grand Seiko look, making this watch ideal for both global travelers and daily wearers seeking understated luxury.

At its heart is the in-house Caliber 9S66 automatic movement, renowned for reliability and mechanical excellence. The movement offers a generous 72-hour power reserve, manual winding support and accurate timekeeping. The sapphire crystal with inner anti-reflective coating ensures clarity, while the screw-down crown and solid case back provide durability. Whether used for business travel or elegant evenings, the SBGM257G combines heritage craftsmanship, precise engineering and refined styling in a timeless package.

Technical Specifications

Caliber no: 9S66

Movement Type: Automatic with manual winding

Power reserve: Approximately 72 hours

Mean daily rate: +5 to –3 seconds per day

Water resistance: 3 bar (splash resistant)

Weight: 92 g

Case back: Exhibition screw-down case back with sapphire insert

Glass Material: Box-shaped sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

Band width: 19 mm

Band Material: Crocodile leather strap

Clasp type: Three-fold clasp with push-button release

Case Thickness: 14.1 mm

Case Diameter: 39.5 mm

Lug-to-lug: 46.9 mm

Features:

True GMT function with a 24-hour hand for second time zone tracking

Instant date change at midnight

Exhibition case back showcasing the beautifully finished movement

Zaratsu polished case surfaces for mirror-like finish and elegant light play

Box sapphire crystal with anti-reflective coating for excellent readability

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