Japanese Crystal Carved Sake Cup | Seigaiha Wave Porcelain | Hasami Ware | Japanese sake cup | Seigaiha pattern | Made in Japan

A quiet wave of light for your sake moment.

When sake is poured, the translucent Seigaiha (blue ocean waves) pattern softly emerges, reflecting light like ripples on calm water. The experience is subtle yet deeply poetic, enhancing the ritual of enjoying sake.

Crystal Carving® is a rare and labor-intensive method. Small holes are carefully carved into fine white porcelain from Amakusa, Kumamoto, then filled with a specially blended clay and fired twice at over 1300°C. This process creates crystal-like transparency within the porcelain itself.
Because each hole is carved by hand, every cup is truly one of a kind.

The Seigaiha motif symbolizes endless waves and lasting good fortune, making this sake cup both meaningful and timeless. Light in weight and perfectly balanced, it fits naturally in the hand and elevates each sip with quiet elegance.

Ideal for daily sake enjoyment or as a refined gift, this crystal-carved guinomi brings tradition, craftsmanship, and serenity to the table.

Product Specifications

Size: Approx. 4.9 cm diameter × 5.5 cm height

Weight: Approx. 37 g

Material: Porcelain (transparent areas are glass-like)

Technique: Crystal Carving®

Kiln: Tanshin Kiln

Origin: Hasami, Nagasaki, Japan

Texture: Smooth and silky

Microwave: Safe (for light warming)

Dishwasher: Safe

Use: Sake / daily use / gift

About the Maker

Crystal Carving® by Tanshin Kiln is the result of patience and devotion. Each line and each hole is carved entirely by hand, making mass production impossible. The number of carvings directly reflects the time and care invested, resulting in unmatched clarity and individuality in every piece.

Free shipping :
The product price includes shipping. You don't have to pay for shipping.
We ship our goods by EMS, a reliable door to door shipping service by Japan Post.

VAT / Import tax :
Our price does not include VAT nor any import tax.
Please pay it at your responsibility if required.
If you have a question, please feel free to ask us.
We are looking forward to your order.

About our store :
We are a select store with a long history, with a physical store in Akasaka, Tokyo.
We carefully select and sell wonderful products from all over Japan.

Because of its location in Akasaka, Tokyo, the store is visited by a great number of foreigners living in Japan and tourists from abroad.
The products we sell are purchased by the owner of the store, who is a connoisseur of ceramics and crafts, after thoroughly examining the products. In this sense, we are distinct from souvenir stores in many tourist destinations in Japan.
If you are able to select and purchase a wonderful Japanese craft from our selection, and if you are satisfied with the quality of the products, it will be worthwhile for us to carefully select and purchase them.

Craft Ogawa, Specialty Store
Akasaka, Tokyo, Japan
Mail:  craft.gallery.ogawa@gmail.com