OPUS 88 OMAR Fountain Pen - Pumpkin

For long ink-heavy writing sessions

The Opus 88 Omar Pumpkin is a bold, warm-toned fountain pen designed around high ink capacity, comfort, and visual impact. Made from an opaque matte acrylic resin in a deep orange “pumpkin” hue, it adds a seasonal, expressive character to your writing experience. Uses an eyedropper filling system with a shut-off valve for controlled flow and travel.

What sets it apart

• High capacity eyedropper filling system for long writing sessions
• Shut-off valve helps prevent leaks during transport
• Warm pumpkin acrylic with strong visual presence
• Oversized body designed for comfort and extended use
• Smooth steel nib with reliable ink flow and consistent performance.

Feel in the hand

The Omar Pumpkin feels energetic and expressive without being loud. The warm orange acrylic creates a sense of warmth and creativity, especially when filled with saturated inks. It turns writing into something more visual and engaging.

Who it’s for

• Writers who enjoy pens with strong colour identity
• Ink enthusiasts who like writing in non-black inks
• Users who prefer larger, more comfortable fountain pens
• People who enjoy seasonal or expressive design aesthetics
• Those who want a high capacity pen for long writing sessions

Not for

• Users who prefer small or pocket-friendly pens
• Those who want cartridge or converter simplicity
• Minimalist users who prefer understated or neutral designs
• Writers who need quick, one handed usability without managing a shut-off valve

Practical tips

• Open the shut-off valve slightly during writing to ensure consistent ink flow
• Close the valve when travelling to prevent leakage
• Fill slowly to minimise air bubbles in the barrel

FAQs

Is the pen translucent? No, the Omar Pumpkin uses a matte opaque acrylic in a warm orange tone.

How does the shut-off valve work? It controls ink flow from the barrel to the feed. Open slightly for writing and close when not in use or during transport.

Do I need to add silicone grease on the grip threads to prevent leaks?
No, the design includes a thick o-ring already.

Is it suitable for beginners? Yes, though like all eyedropper pens, it requires slightly more care than cartridge-based systems.

Can it be used with document and shimmer inks? Yes, but regular cleaning is recommended to maintain consistent flow.

How large is the pen? It is an oversized fountain pen designed for comfort during extended writing sessions.

What other nibs is it compatible with?
Other size #12 JoWo nib units and also the nib unit from the Pilot Parallel art pen.

What’s included

• Opus 88 Omar Pumpkin Fountain Pen
• Eyedropper
• Spare small o-ring for back of nib unit
• Instruction leaflet
• Free nib tuning from LarryPOST

Ink pairing suggestions

• Deep reds for a cohesive seasonal palette
• Burnt orange and sepia tones for a monochrome earthy feel
• Teal inks for strong complementary contrast 

Build your practice

• Pilot Iroshizuku 50mL ink for volume
• Herbin inks, lots of earth colours
• Opus 88 replacement #12 nib unit

Specifications

• Brand: Opus 88
• Brand series: Omar
• Launch: 2016
• Origin: Taiwan
• Nib: Jowo #6, stainless steel
• Nib sizes: EF, F, M, B, 1.5mm stub
• Filling system: Eye dropper
• Material: Opaque acrylic, black clip
• Trim: Stainless steel
• Weight: approx. 34g (capped)
• Length: approx. 148mm (capped)
• Diametre: approx. 16mm
• Comparable size: Twsbi Diamond 580

Performance and personality in a pen.