Products

The Opus 88 Demonstrator fountain pen is a distinctive, thoughtfully engineered writing instrument designed for those who appreciate both form and function. This large, non-postable pen features a true eyedropper filling system paired with a piston-operated shut-off valve, offering exceptional ink capacity and added security. Its striking combination of frosted and clear resin creates a clean, modern aesthetic that stands out, complemented by a sleek black clip and a silver stainless steel #6 JoWo nib for smooth, reliable writing. A glass eyedropper is included for easy filling with your favorite ink.

An ebonite piston and rubber gasket seal the feed from the barrel when fully closed, helping to prevent leakage and ink burping during travel or storage. To write, simply unscrew the blind cap and slightly loosen the rear rod to open ink flow to the feed; for extended writing sessions, leaving the valve open allows you to take full advantage of the pen’s impressive ink capacity. The fully clear body lets you easily monitor ink levels and view the nib even while capped.

Note: JoWo is transitioning from the traditional scroll nib design to a simpler engraving. Current stock may include either style, and the nib received may differ from photos shown.

Color: Clear
Trim: Black
Filling System: Eyedropper
Nib: Extra Fine, Fine, Medium, Broad or Stub 1.5
Nib Material: Steel

The Opus 88 Demonstrator Mocha Mousse fountain pen is a bold and thoughtfully engineered writing instrument designed for writers who appreciate both capacity and control. This large, non-postable pen features an eyedropper filling system, offering exceptional ink capacity while minimizing leaks during travel or storage. It is fitted with a black stainless steel #6 JoWo nib for smooth, dependable performance and includes a glass eyedropper for easy filling with your favorite fountain pen ink.

Finished in a warm, café-inspired palette, the Mocha Mousse design pairs an opaque light brown cap and barrel with translucent dark brown finials, creating a visually rich yet understated look. This colorway is a limited edition for 2025, making it a distinctive addition to any collection. An ebonite piston and rubber gasket seal the ink chamber when fully closed, preventing burping and leakage. Simply unscrew the blind cap and slightly loosen the rear rod to open ink flow to the feed. For extended writing sessions, leaving the valve open allows you to fully enjoy the pen’s impressive ink capacity and uninterrupted writing experience.

Color: Brown

Trim: Gun metal

Filling System: Eyedropper

Nib: Fine, Medium, or Broad

Nib Material: Steel, black

The Opus 88 Demonstrator Sapphire fountain pen makes a bold impression with its sparkling, swirling acrylic resin in a rich sapphire blue. Its clean, cylindrical profile with flat ends highlights the modern demonstrator design, while a JoWo #6 steel nib finished in black PVD delivers smooth, dependable writing performance with a sleek, contemporary look.

This pen features Opus 88’s signature eyedropper filling system, offering an exceptionally large ink capacity. To fill, simply unscrew the grip section, use the included pipette to add ink, and reassemble the pen. Before writing, the rear blind cap must be loosened to open the internal valve. This shut-off valve system allows you to control ink flow—open it for extended writing sessions and close it when traveling or storing the pen—providing both convenience and peace of mind in everyday use.

Color: Blue

Trim: Gun metal

Filling System: Eyedropper

Nib: Extra Fine, Fine, Medium, Broad or Stub 1.5

Nib Material: Steel

The Opus 88 Demonstrator fountain pens pair bold, expressive colorways with a classic true eyedropper filling system. Machined from solid bar stock, each pen is equipped with a smooth-writing #6 stainless steel nib, delivering reliable performance alongside striking design.

The 2024 Special Edition features a playful, juicy color palette, blending translucent light pink resin with a rich purple grip and blind cap, accented by a deep green cap finial for contrast. Black PVD finishing on both the pocket clip and the #6 stainless steel nib adds a modern, cohesive touch. With an impressive 4 ml ink capacity, the Demonstrator includes a central shut-off rod that controls ink flow and helps prevent leaks during travel or storage. The screw-down valve securely seals the ink inside the barrel, offering added peace of mind and making it a safer, more practical option than traditional eyedropper-filled fountain pens.

Color: Pink, other

Trim: Black

Filling System: Eyedropper

Nib: Extra Fine, Fine, Medium, Broad or Stub 1.5

Nib Material: Steel

Celebrate the delicate beauty of nature with the Opus 88 Harmony Flower Fountain Pen, a graceful expression of artistry and everyday writing performance. Known for their expertly engineered fountain pens and generous ink capacities, Opus 88 reveals a softer, more poetic side through the Harmony series—a collection inspired by the balance between creative expression and dependable craftsmanship. Crafted from high-quality resin, the Harmony Flower captures the ethereal charm of a blooming garden in a writing instrument designed to inspire every page.

Unlike the larger, more industrial silhouettes found in some Opus 88 collections, the Harmony features a streamlined, tapered profile that feels balanced and comfortable in the hand. Its lightweight construction makes it an excellent companion for extended journaling sessions, letter writing, or everyday note-taking without fatigue.

At the heart of the pen is a reliable stainless steel #5 JoWo nib, renowned for delivering a smooth, consistent writing experience right out of the box. The Harmony series also offers the convenience of an international cartridge/converter filling system, allowing for effortless ink changes and easy maintenance—perfect for writers who enjoy exploring a variety of ink colors.

Soft, luminous, and quietly captivating, the Opus 88 2026 Cloud Dancer Harmony Fountain Pen brings an ethereal new look to one of Opus 88’s most anticipated annual releases. Created as the 2026 “color of the year” edition for the Harmony model, Cloud Dancer pairs dreamy pearl resin with warm rose gold accents for a writing instrument that feels both elegant and serene.

The standout feature of this release is its beautifully crafted resin. With a soft, semi-opaque finish and a gentle gray-blue undertone, the material shifts subtly in the light, creating an airy, refined appearance that perfectly reflects the Cloud Dancer name. Rose gold trim adds a layer of warmth and sophistication, offering a striking contrast to the cool, luminous body.

Thoughtful design details elevate this edition even further. The center ring is engraved with Opus 88, while the finial features “The Harmony” in elegant script. A delicate ballerina emblem in rose gold graces the back of the cap, and just beneath where the cap rests on the barrel, “2026 Cloud Dancer” is printed in matching rose gold—an understated mark of this special annual release.

The Opus 88 Holiday Jazz fountain pen features a refined frosted clear barrel and cap, paired with sleek gunmetal accents for a modern, understated look. This large, postable pen utilizes a true eyedropper filling system combined with a piston-like shut-off valve, delivering an impressive ink capacity with added security. It is fitted with a silver stainless steel #6 JoWo nib for smooth, consistent writing and includes a glass eyedropper for easy filling with your favorite fountain pen ink.

An ebonite piston and rubber gasket seal the feed from the barrel when fully closed, helping to prevent leaks and ink burping during travel or storage. To begin writing, simply unscrew the blind cap and loosen the rear rod to open ink flow to the feed. For extended writing sessions, leaving the valve open allows you to fully enjoy the pen’s generous ink capacity. The frosted clear body also makes it easy to monitor ink levels and view the nib even while the pen is capped.

Note: JoWo is transitioning from the traditional scroll nib engraving to a simpler design. Current inventory may include either style, and the nib you receive may differ from product photos.

Color: Clear
Trim: Silver
Filling System: Eyedropper
Nib: Fine, Medium, Broad
Nib Material: Steel

The Opus 88 Jazz Cat Walk Limited Edition blends eye-catching autumn-inspired design with everyday writing comfort. Its translucent resin body, soft white detailing, maple leaf accents, ruby-red ends, and silver trim give it a distinctive collectible look.

The Opus 88 Jazz Fountain Pen - Cat Walk is a beautifully designed limited-edition fountain pen crafted from resin with a light translucent finish that allows the ink level to remain partially visible during use. Flowing white accents and maple leaf-inspired artwork in warm orange tones give the pen an elegant seasonal aesthetic, while its traditional cigar-shaped profile offers a timeless look and comfortable feel in hand. It features a firm stainless steel nib available in EF, F, M, B, and 1.5mm Stub sizes, complemented by refined silver-tone trim. The pen utilizes an eyedropper filling system with Opus 88’s internal shut-off mechanism and center rod for controlled ink flow, while the threaded screw cap helps provide a secure seal when not in use.

Limited Edition: 164/300

The Opus 88 Jazz Under the Mistletoe Limited Edition brings festive charm to the Jazz lineup with its shimmering red-and-gold resin, playful cat artwork, and holiday-inspired detailing. Green finials add contrast, while the overall design feels cheerful, warm, and collectible.

The Opus 88 Jazz Fountain Pen - Under the Mistletoe (Limited Edition) features a durable resin body with a translucent festive finish highlighted by rich red and gold tones, metallic shimmer, ribbon-inspired patterns, golden cat artwork, and a mistletoe motif on the cap. Designed with a classic cigar-shaped silhouette, the pen combines elegance with comfort through its wide barrel, which provides a steady and comfortable grip during extended writing sessions. It is fitted with a hard stainless steel #6 nib and accented with refined silver trim for a polished appearance. The pen uses an eyedropper filling system and includes a built-in shut-off valve that helps regulate ink flow for reliable performance. A secure screw-cap design completes the pen’s functional and decorative appeal.

Limited Edition: 252/300