Grand Seiko Evolution 9 Diver 43.8mm

$16,300.00 NOT IN STOCK

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Bracelet Size
  • 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. 200M / 20 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. 43mm
  • A watch movement icon display the inside gears of a mechanical watch. Spring drive automatic winding
  • A power reserve icon that looks like a gauge that indicates how much power is left. 120 hours

This Grand Seiko diver’s watch combines high performance with rich natural inspiration. Powered by the Spring Drive Caliber 9RA5, it offers ±10 seconds per month accuracy and an impressive five-day power reserve. The 200m water-resistant case is crafted from High-intensity Titanium—30% lighter than steel and highly resistant to corrosion—while a ceramic bezel adds scratch-proof durability. Its dynamic black dial, deeply textured and boldly styled, evokes the strength and movement of the Kuroshio Current, the powerful ocean stream that flows past Japan.
Grand Seiko Watch Warranty

The period of the Grand Seiko worldwide warranty is five years from the date of purchase.
Model Number
SLGA015G
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 Evolution 9 Diver 43.8mm

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.

200M / 20 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 9RA5 Spring drive automatic winding

Caliber 9RA5 is a next-generation Spring Drive movement crafted at the Shinshu Watch Studio, where expert artisans meticulously assemble each component by hand. Showcasing advanced technology and refined craftsmanship, it offers an accuracy of ±10 seconds per month and a 120-hour power reserve, thanks to its Dual-size Barrels. The Offset Magic Lever reduces thickness by 0.8mm, while the repositioned crown lowers the watch’s center of gravity for enhanced comfort. A One-piece Center Bridge adds strength and shock resistance, making 9RA5 a true embodiment of Grand Seiko’s pursuit of precision and innovation.

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.

43mm 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.

120 hours 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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