Acetate ballpoint pen - Oonishi Seisakusho -

Handcrafted in Osaka: The Acetate Machined Ballpoint Pen

A Lifetime Companion Born from 65 Years of Craftsmanship
Experience a writing instrument that feels less like a tool and more like a part of you. This artisan-machined ballpoint pen, crafted in the manufacturing heart of Higashi-Osaka, offers a silky touch and a "speaking" transparency that captivates the eye.

The Legend of Onishi Seisakusho

The soul behind every pen is Mr. Keizo Onishi, a master craftsman who began his journey at age 15. With over 65 years of dedication to his craft, Mr. Onishi is one of the few—and perhaps the last—craftsmen in Japan capable of handling the complex, labor-intensive machining required for these unique masterpieces.

Why Choose the Onishi Acetate Pen?

The Beauty of Acetate: Made from high-grade acetate—the same durable material used in luxury eyeglass frames. It is celebrated for its deep color development, "wet" silky texture, and a unique warmth that feels natural in the hand.

A "Sticky" Tactile Grip: Unlike cold plastics, acetate has moderate moisture absorption, creating a tactile grip that feels as if it’s sticking to your hand, yet remains smooth to the touch.

Masterfully Hand-Machined: Using specialized tools and decades of know-how, Mr. Onishi machines each pen almost entirely by hand. The result is a vibrant, practical work of art that feels "special" from the moment you hold it.

Practical Excellence: Despite its luxury feel, this pen is designed for daily use. It is remarkably lightweight, ensuring your hand never tires even during long writing sessions.

The Perfect Personalized Gift

Available in 7 vibrant colors, these pens are designed to be used and cherished.

Custom Engraving: Make it truly yours or create an unforgettable gift with our name engraving service. Custom name engraving is available for this product. Make it unique with our personalized engraving service.

Experience the warmth of Japanese Monozukuri (craftsmanship). Let this pen grow with you, gaining character and charm with every word you write.

■ Size & Specifications

• Craftsman: Keizo Onishi (Onishi Seisakusho)

• Origin: Higashi-Osaka, Japan

• Material: Premium Acetate

• Features: Lightweight, Hand-machined, Refillable

• Options: 7 Colors, Name Engraving Available

• Dimensions:

  • Length: Approx. 140mm (Closed) / 145mm (Writing mode)

  • Body Diameter: Approx. 13mm

• Weight: Approx. 22g

• Mechanism: Twist-action

  • Designed with a smooth, light-touch rotating mechanism.

• Refill: Schmidt P900 F (Fine tip)

  • Includes one black ink refill. The pen is also compatible with other standard ballpoint pen refills.

■ Packaging

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