The Opus 88 Harmony Mocha Mousse 2025 presents one of the most elegant and unexpected interpretations of the Harmony collection. Created as a tribute to Pantone\'s Color of the Year 2025, the design moves beyond a literal brown palette and explores a softer, more contemporary combination of translucent purple-pink resin, pale pink accents and warm rose gold details.

The result is a beautifully balanced colour scheme with a delicate, almost ethereal character. The translucent resin allows the internal architecture of the pen to remain visible, while the pale pink finials soften the design and the rose gold trim introduces warmth and refinement.

The rose gold treatment extends to the JoWo #6 stainless-steel nib, creating a harmonious visual connection between the nib, clip and decorative trim. Together, these details give the Harmony Mocha Mousse a distinctive identity that feels elegant, modern and unmistakably different from more traditional demonstrator designs.

The pen features Opus 88\'s Japanese-style eyedropper filling system, providing a generous ink capacity and excellent practicality. Filling is accomplished by unscrewing the grip section and using the included eyedropper to fill the main reservoir.

An integrated shut-off valve controls the flow of ink between the reservoir and the nib. During longer writing sessions, the end blind cap can be loosened slightly to allow continuous ink flow. When fully closed, the valve isolates the main ink chamber, providing additional security when carrying the pen or travelling, including by air.

The Opus 88 Harmony Mocha Mousse 2025 combines the brand\'s high-capacity filling system and practical shut-off valve with an exceptionally soft and sophisticated colour palette, creating a fountain pen that feels both contemporary and quietly luxurious.

Note: If you prefer a different nib size from those currently available, please contact us and we will be happy to check availability in more detail.