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Grand Seiko Heritage Automatic Mechanical 9S27 Diamond 27.8mm "Mizu Hanada" Pale Blue Dial STGK023- BRAND NEW

Grand Seiko Heritage Automatic Mechanical 9S27 Diamond 27.8mm "Mizu Hanada" Pale Blue Dial STGK023- BRAND NEW Grand Seiko Heritage Automatic Mechanical 9S27 Diamond…

Reference STGK023

Full watch configuration

Grand Seiko Heritage Automatic Mechanical 9S27 Diamond 27.8mm "Mizu Hanada" Pale Blue Dial STGK023- BRAND NEW

$6,200.00
Requested condition
Brand New
Requested accessories
Full Set

By Grand Seiko

Sourced to order. We confirm the watch, condition and final price before purchase. Reference images shown.

Eligible watches: 90-day returns for store credit only. Brand-new watches and other exclusions are final sale. Return terms.

Grand Seiko Heritage Automatic Mechanical 9S27 Diamond 27.8mm "Mizu Hanada" Pale Blue Dial STGK023- BRAND NEW

Grand Seiko Heritage Automatic Mechanical 9S27 Diamond 27.8mm "Mizu Hanada" Pale Blue Dial STGK023- BRAND NEW

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Grand Seiko Heritage Automatic Mechanical 9S27 Diamond 27.8mm "Mizu Hanada" Pale Blue Dial STGK023- BRAND NEW

Catalogue watch price: $6,200.00 USD

Your $200 deposit is applied to the watch’s purchase price. It is refundable only if Bizak & Co. cannot fulfill your order.

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The Grand Seiko Heritage STGK023 is a brand-new automatic mechanical ladies' watch presented in a 27.8mm stainless steel case with a stunning pale blue 'Mizu Hanada' dial and a diamond-set stainless steel bezel. The 9S27 movement powers this refined timepiece, which is complemented by a polished and brushed stainless steel bracelet finished to Grand Seiko's exacting Zaratsu standards.

The STGK023 stands apart through its poetic Mizu Hanada dial — a shade inspired by the pale blue of water reflecting the Japanese sky — paired with the brilliance of diamond accents on the bezel, making it one of the most evocative expressions in the Heritage collection. Contact Bizak & Co. today to purchase this Grand Seiko STGK023 brand new with full box and papers at the best price available online.

Compare it across every Heritage reference we carry, or browse the full Grand Seiko collection at Bizak & Co.

Buy this Heritage, trade in your current watch, or sell us yours. Contact Bizak & Co. to make an offer or request a fair-market valuation.

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The Grand Seiko Heritage STGK023 is a masterclass in Japanese horology and aesthetic refinement. Presented as a brand-new timepiece, it belongs to the celebrated Heritage collection — Grand Seiko's homage to its founding principles of legibility, precision, durability, and beauty. Within this collection, Grand Seiko has long championed the idea that a watch is not merely a timekeeping instrument but a work of art shaped by its natural surroundings and cultural heritage.

At the heart of the STGK023's visual identity is its 'Mizu Hanada' dial, a term drawn from traditional Japanese color nomenclature describing the pale, luminous blue of water reflecting a clear sky. The dial surface captures light in a manner unique to Grand Seiko's artisanal finishing techniques, shifting subtly with the angle of view and the quality of ambient light. This interplay of color and texture transforms the watch into something alive on the wrist — a quality that photographs rarely do justice to.

The 27.8mm stainless steel case is proportioned specifically for the wrist presence preferred by many women, striking a balance between visual impact and elegant restraint. The case construction reflects Grand Seiko's signature Zaratsu hand-polishing method, in which flat and curved surfaces are worked by skilled craftspeople to achieve mirror-flat planes and crisp, defined edges. This technique eliminates distortion and produces a depth of finish that stands in a class of its own among Swiss and Japanese watchmakers alike.

The diamond-set stainless steel bezel frames the Mizu Hanada dial with carefully matched stones, adding a layer of formal elegance without overwhelming the watch's serene character. The stainless steel bracelet continues the dual-finish language of the case, with alternating polished and brushed links that complement the dial and bezel beautifully. Powering the STGK023 is the 9S27 automatic mechanical caliber, a movement developed and manufactured entirely in-house by Grand Seiko, reflecting the brand's commitment to vertical integration and uncompromising quality.

Buying a brand-new Grand Seiko STGK023 from Bizak & Co. means acquiring this piece with full manufacturer box and papers, ensuring authenticity, provenance, and peace of mind. Bizak & Co. is a trusted luxury watch dealer offering competitive pricing and expert service. Whether you are adding to an established collection or purchasing your first Grand Seiko, the STGK023 represents a deeply considered choice — one that rewards daily wear with quiet beauty and enduring craftsmanship. Reach out to our team at bizakandco.com to buy this reference online or to learn more.

Technical Details
Reference
STGK023
Model
Heritage
Movement
Automatic
Case material
Stainless Steel
Bracelet material
Stainless Steel
Dial
Pale Blue (Mizu Hanada)
Case size
28mm
Requested condition
Brand New
Requested accessories
Full Set
FAQ

1. What makes the Grand Seiko STGK023 special?
The STGK023 is distinguished by its 'Mizu Hanada' pale blue dial, a color inspired by the Japanese concept of water-reflected sky, rendered using Grand Seiko's artisanal dial-finishing techniques. Combined with a diamond-set bezel and Zaratsu-polished stainless steel case, it represents one of the most refined expressions in the Heritage collection.

2. What movement powers the Grand Seiko STGK023?
The STGK023 is powered by Grand Seiko's in-house 9S27 automatic mechanical caliber. This movement is developed and produced entirely within Grand Seiko's own facilities, reflecting the brand's hallmark commitment to precision and self-sufficiency in watchmaking.

3. What is the case size of the Grand Seiko STGK023?
The STGK023 features a 27.8mm stainless steel case, a size thoughtfully proportioned for elegance and wearability. Its Zaratsu-polished surfaces ensure it presents beautifully at any angle despite its refined dimensions.

4. Is the Grand Seiko STGK023 suitable for everyday wear?
Yes — while the diamond-set bezel and Mizu Hanada dial give the STGK023 a formal, dressed character, its stainless steel construction and automatic movement make it a practical companion for daily wear. It transitions effortlessly from professional settings to evening occasions.

5. What is the dial color and bezel material of the STGK023?
The dial is finished in pale blue 'Mizu Hanada,' a traditional Japanese color evoking the serene blue of water reflecting the sky. The bezel is stainless steel set with diamonds, providing a complementary sparkle that enhances the dial's delicate color.

6. How can I buy the Grand Seiko STGK023 from Bizak & Co.?
The STGK023 is available brand new with full box and papers at bizakandco.com. You can purchase it online or contact the Bizak & Co. team directly for pricing, availability, and any questions — our specialists are on hand to ensure a smooth and confident buying experience.

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5 Years Warranty

Our five-year Bizak & Co. warranty covers manufacturing defects affecting mechanical operation under normal use, starting on delivery. It is separate from any remaining manufacturer warranty.

Exclusions include accidental damage, misuse, water damage, cosmetic damage, normal wear, loss and theft. Coverage and service availability for vintage or modified watches are confirmed in writing before purchase.

Read the full warranty terms and service instructions. 

90-Day Returns for Store Credit

Eligible watches may be returned within 90 days for store credit. Brand-new watches and other exclusions are final sale.

Read eligibility, condition requirements, and exclusions.

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Insured shipping

U.S. overnight shipping is $100; international shipping is $500. Dispatch takes 2–3 business days after your wire clears. International transit times vary. Shipping details.

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