Grand Seiko

Spring Drive Diver SLGA023

Reference Number :

SLGA023

Series : Evolution 9

Retail: $12,000

(As of: 01/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Grand Seiko. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThe SLGA023 is Grand Seiko's latest evolution in dive watch technology, a beast that merges the brand's refined Evolution 9 design language with the rugged demands of underwater exploration. The lightweight titanium build and secure bracelet give way to a vibrant blue dial inspired by the ebb and flow of mighty ocean currents. The impressive power reserve is displayed on the dial, which is mesmerizingly patterned with the movement of ocean currents. It's a subtle nod to the ocean's might that this watch is built to withstand, with 200 meters of water resistance. With a heart formed by the Spring Drive Caliber 9RA5, this diver doesn't just tell time; it captures the essence of precision, offering accuracy that rivals the tide's predictability. A perfect blend of functionality and artistry, the SLGA023 feels like a piece of the ocean's soul, tamed and crafted for the wrist, designed to be as reliable and awe-inspiring as the sea itself.

DescriptionThe Grand Seiko Reference SLGA023 is a professional-grade diver's watch constructed from high-intensity titanium, providing enhanced durability and reduced weight, tipping the scales at a mere 150 grams. The timepiece showcases the Evolution 9 Style, which dictates its overall aesthetic and legibility. With dimensions of 43.8mm in diameter, a lug-to-lug measurement of 51.5mm, and a thickness of 13.8mm, the SLGA023 maintains a substantial presence on the wrist. The case back is a screw-down design to ensure optimal water resistance, which is rated at 200 meters in accordance with ISO standards for diver's watches. Protection for the dial is provided by a sapphire crystal with an anti-reflective coating applied to the inner surface, maximizing visibility under various lighting conditions. Applied generously to the hands, indexes, and bezel is LumiBrite material, ensuring exceptional low-light legibility. The watch is secured to the wrist by a high-intensity titanium bracelet with a 23mm width, culminating in a three-fold clasp with a secure lock and push-button release. Moreover, it features a solid slide adjuster for precise fit adjustments. Notably, the unidirectional rotating bezel is furnished with a ceramic insert, providing scratch resistance. The bezel and dial are rendered in Grand Seiko blue, with the dial featuring the "ushio" pattern, reminiscent of the dynamic undulation of ocean waves, inspired by the confluence of the Kuroshio and Oyashio currents near Japan.

Powering the SLGA023 is the advanced Spring Drive Caliber 9RA5. This automatic movement features a remarkable accuracy rating of ±10 seconds per month (±0.5 seconds per day), significantly exceeding the precision of conventional mechanical movements. It boasts a substantial power reserve of 120 hours, or approximately five days, when fully wound. A power reserve indicator is discreetly integrated into the dial. The 9RA5 caliber also provides magnetic resistance up to 4,800 A/m, safeguarding the movement from the influence of magnetic fields. A screw-down crown contributes to the watch's water resistance, adding an extra layer of security.

GenderMen

SignaturesGrand Seiko

Country of OriginJapan

Case Size43.8 mm

MovementAutomatic

Caliber9RA5

FunctionsHours, Minutes, Seconds, Date, Power Reserve

Power Reserve120 Hours

Case MaterialsTitanium

Bezel MaterialsCeramic

Lug MaterialsTitanium

Case BackSolid