Grand Seiko Heritage 40mm

$4,300.00

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  • A water resistance icon in the shape of a shield. On the shield is a drop of water and beside the water are two lines that looks like waves. 100M / 10 ATM
  • A watch case size icon that shows the head of the watch with an arrow on the dial giving an indication as to the diameter of the dial. 40mm
  • A watch movement icon display the inside gears of a mechanical watch. Quartz (battery-powered)
  • A power reserve icon that looks like a gauge that indicates how much power is left. Approx. 3 years

The Grand Seiko SBGP003G is powered by the Caliber 9F85 quartz movement, featuring an independent hour hand adjustment that allows seamless time zone changes without stopping the seconds hand—preserving its remarkable precision. Only the most accurate quartz crystals, aged and rigorously tested for three months, are selected for this elite movement. With its mirror-finished surfaces, refined satin detailing, and perfectly balanced case size, the SBGP003G embodies Grand Seiko’s relentless pursuit of legibility, durability, and timeless elegance—all crafted by master artisans in Japan.
Grand Seiko Watch Warranty

The period of the Grand Seiko worldwide warranty is five years from the date of purchase.
Model Number
SBGP003G
Shipping & Returns

Free FEDEX overnight shipping on all Grand Seiko watches. Our return policy is 10 days for your money back, or 30 days to exchange.

Technical information about this watch

Grand Seiko Heritage 40mm

A water resistance icon in the shape of a shield. On the shield is a drop of water and beside the water are two lines that looks like waves.

100M / 10 ATM water resistance

Water resistance indicates a watch's ability to withstand moisture and water. Ratings are measured in metres (M) or atmospheres (ATM). For instance, 30M (3 ATM) is suitable for light splashes, while 100M (10 ATM) and above are ideal for swimming and diving. Regular maintenance helps retain water resistance over time.

A watch movement icon display the inside gears of a mechanical watch.

GS Calibre 9F85 Quartz (battery-powered)

Caliber 9F85 is a high-precision quartz movement with ±10 seconds per year accuracy and a 3-year battery life. It features an independent hour hand for easy time zone changes and Grand Seiko’s signature instant date change mechanism, offering exceptional functionality and reliability.

A watch case size icon that shows the head of the watch with an arrow on the dial giving an indication as to the diameter of the dial.

40mm case size

Case size, measured in millimetres (mm), impacts the watch's look and fit. Men's watches typically range from 38mm to 46mm, and women's from 26mm to 36mm. Larger cases make a bold statement, while smaller cases offer a classic look. Choosing the right size ensures comfort and style.

A power reserve icon that looks like a gauge that indicates how much power is left.

Approx. 3 years power reserve

Power reserve is the duration a watch runs on a full wind or charge. Mechanical watches usually offer 40 to 80 hours, with some extending to several days. Quartz watches, powered by batteries, last several years. Knowing the power reserve helps maintain accurate timekeeping.

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Returns & Exchanges

10 days for your money back, or 30 days for an exchange

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Financing

Great financing terms through Flexiti Financial