The Opus 88 Harmony fountain pen brings a fresh aesthetic to classic eyedropper design, combining warm, grounded tones with precision engineering. This 2025 special edition, *Mocha Mousse*, captures the comforting richness of chocolate and cream with a modern, minimalist sensibility. Crafted from high-quality resin, the pen features a rose gold-finished #6 stainless steel nib and matching trim—elevating its design with a luxurious, understated elegance.
The cap and blind cap are rendered in a deep cocoa brown, while the semi-translucent barrel shimmers in a soft, mousse-toned beige. The top finial is a light almond shade, providing contrast and balance to the pen’s earthy palette. Designed as a true eyedropper, the Harmony incorporates a shut-off valve operated by the blind cap, giving users control over ink flow and preventing leakage during travel or long periods of disuse.
With an ink capacity of approximately 2ml, the Harmony offers a compact yet efficient writing experience. It’s presented in an Opus 88 gift box and includes a glass eyedropper for easy filling.
Opus 88 Harmony Fountain Pen in Mocha Mousse with Rose Gold Trim Specifications
- Pen Material: Resin
- Nib: #6 Stainless Steel nib, Rose Gold PVD finish
- Trim: Rose Gold-plated trim
- Filling System: Eyedropper (includes glass eyedropper) with shut-off valve mechanism
- Pen Length Closed: 5.63 in. / 143mm
- Pen Length Open (Cap Off): 5.11 in. / 130mm
- Pen Cap Length: 2.52 in. / 64mm
- Pen Body Max Diameter: 0.56 in. / 14.2mm
- Pen Grip Section Diameter: 0.45–0.50 in. / 11.5–12.7mm
- Pen Total Weight: 0.85 oz / 24g
- Ink Capacity: ~2ml
- Gift boxed with instruction booklet
- Made in Taiwan