Grand Seiko Evolution 9 Collection SLGA023
Featuring the Evolution 9 Style, 200 meters of water resistance, and a blue variation on the “ushio” dial initially seen in 2022 in black, the new Reference SLGA023 is the latest diver’s watch from Grand Seiko. Below its distinctive, patterned dial is the Spring Drive Caliber 9RA5, a next-generation movement with automatic winding, ±10 seconds per month accuracy, and a power reserve of 120, or about five days, when fully wound.
The Evolution 9 Style is a set of original design techniques intended to further pursue usability and beauty in wristwatches and is a development upon the Grand Seiko Style. This sports watch combines these design elements with compliance with ISO standards to satisfy the requirements for a diver’s watch, with increased readability, operability, and robustness.
The coastal waters of Japan are influenced by the flow of the Kuroshio Current, one of the world’s major ocean currents, as well as by the nutrient-rich waters of the Oyashio Current, creating one of the world’s most diverse ocean regions. The dynamic undulation of the waves of these ocean currents is expressed in the powerful dial pattern of this watch, which also uses a unidirectionally rotating bezel with an insert made of ceramic. However, unlike last year’s Spring Drive diver’s watch, which was black, this year the dial and bezel are in Grand Seiko blue.
| Case | High-intensity titanium |
| Movement | Automatic |
| Dial | Blue |
| Functions | Date, power reserve indicator |
| Power Reserve | 120 hours |
| Bracelet | High-intensity titanium |
| Warranty | 5 Year |
Shipping
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Complimentary Two-Day Shipping on purchases over $100. Order processing can take up to 3-5 business days.
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We currently only ship domestically within the United States. Orders ship Monday through Thursday, excluding public holidays, via standard overnight service with signature required, per our insurance policy. Shipping delivery must be confirmed by the recipient in order to ship out the order. If a package is undeliverable and returned to us, additional shipping charges may apply for reshipment.
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Shipping fee for watch straps and accessories is flat $35. Please note: all watch parts are FINAL SALE.
Inspection Upon Delivery
Please carefully inspect your package at the time of delivery. If the outer packaging appears damaged, opened, resealed, punctured, or otherwise tampered with, we kindly ask that you refuse delivery. Please inform the carrier that you are declining the shipment due to suspected damage or tampering.
If possible, take clear photographs of the package—showing the condition of the box, shipping label, and any visible damage or broken seals—before returning it to the carrier.
Please note that by accepting the package, you acknowledge that the outer box appears intact and untampered with at the time of delivery.
Exchanges & Store Credit
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Eligible items may be exchanged or returned for store credit within 3 business days of receipt. No refunds.
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To request an exchange or store credit, contact Customer Service at customerservice@chpremier.com or reply to your confirmation email to initiate the process.
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Items marked “Final Sale”, including all watch parts, promotional/discounted merchandise, and financed purchases (e.g., Affirm, Shop Pay Installments), are not eligible for return, exchange, or store credit.
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Returns due to change of mind or buyer’s remorse will not be accepted.
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Merchandise must be in original, unworn condition, with the protective blue tag attached. Items showing signs of wear, alteration, or damage will not be accepted.
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A shipping and restocking fee applies to all approved returns/exchanges.
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We reserve the right to refuse any return that does not meet the above requirements.
Our online policies may differ from our in-store policies. The above terms apply only to online purchases.