Evolution 9 Collection Ushio 300 Spring Drive 40.8 mm
Regular price$16,300.00
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Free shipping in Canada on orders over CAD $250. Delivery details.
Grand Seiko
Reference: SLGB023
Product description
About this Grand Seiko watch
The Grand Seiko SLGB023 expresses Grand Seiko’s approach to precision and Japanese design through a blue Ushio dial inspired by the tides around Japan’s coastline. A 40.8 mm high-intensity titanium case with sapphire crystal balances visual refinement with everyday wearability.
Inside, the Calibre 9RB1 Spring Drive U.F.A. delivers a power reserve of approximately 72 hours (3 days) and official accuracy rated at ±20 seconds per year (±3 seconds per month), complemented by 300m / 1000ft diver's water resistance. It is a considered choice for collectors seeking distinctive Japanese design and accomplished Grand Seiko watchmaking.
Technical details
Evolution 9 specifications
Reference
SLGB023
Collection
Evolution 9
Movement
Spring Drive
Calibre
9RB1
Functions
Unidirectional rotating bezel; Screw-down crown; Allergy-safe metal; 33 jewels; Power reserve indicator; Accuracy: ±20 seconds per year (±3 sec/month); Magnetic resistance: 4,800 A/m; LumiBrite on hands, index(es) and bezel
Sapphire crystal; Anti-reflective coating on inner surface
Case back
Screw case back
Water resistance
300m / 1000ft diver's
Band
High-Intensity Titanium
Clasp
Locking extension clasp with micro-adjustment
Weight
122 g
Why choose this watch
Why choose this Grand Seiko Evolution 9?
This reference brings together Grand Seiko's focus on precision, legibility and meticulous Japanese finishing in a design made for long-term ownership. Its spring drive movement gives it a distinct technical character, while the blue dial gives this individual reference its own visual identity.
Blue dial paired with ["high-intensity titanium"].
Frequently asked questions
Grand Seiko product FAQ
Is this an authentic Grand Seiko watch?
Yes. Golden Tree Jewellers is an official Grand Seiko dealer, and this watch is supplied with the presentation materials and warranty documentation provided for the specific reference.
What Grand Seiko warranty is included?
Grand Seiko provides a five-year worldwide manufacturer warranty from the date of purchase, subject to Grand Seiko’s warranty terms and exclusions. Keep the completed warranty documentation supplied with the watch.
Can I purchase this Grand Seiko online?
This reference is available by inquiry rather than direct online checkout. Contact Golden Tree Jewellers for current availability, an in-store appointment or purchase assistance.
How should I choose a Grand Seiko movement?
Grand Seiko offers mechanical, Spring Drive and quartz movements with different ownership experiences. Review the verified movement and calibre specifications for this reference, or contact our watch specialists for guidance.
Purchase support
Shipping, returns and warranty
Shipping and in-store pickup
Free shipping within Canada on orders over $250. In-stock Canadian orders are delivered within 2–5 business days, including processing and transit. This also applies to Affirm and Flexiti orders. In-store pickup is available when offered for this item. Read our shipping policy for current terms.
Returns
Eligibility, time limits and exclusions are governed by Golden Tree Jewellers' current return and refund policy.
Grand Seiko warranty
Grand Seiko provides a five-year worldwide manufacturer warranty from the date of purchase, subject to its warranty terms. Keep the completed warranty documentation supplied with the watch.
Need help choosing?
Contact Golden Tree Jewellers for availability, sizing guidance, movement questions or an in-store viewing.
