OPUS 88 OMAR Fountain Pen - Demonstrator (Clear)
Pure demonstrator clarity for ink lovers
The Opus 88 Omar Demonstrator is the most minimal expression of the Omar series. As the most translucent of the range, it is designed to showcase your ink. Every fill becomes part of the visual experience, making this pen especially appealing to those who enjoy watching colour, shading, and sheen evolve as they write.
Built from durable acrylic resin and using a high capacity eyedropper filling system with a shut-off valve, it combines visual appeal with practical long form writing performance.
What sets it apart
- Translucent acrylic demonstrator body
- Visibility of ink colour, shading, and shimmer
- High capacity eyedropper filling system
- Shut-off valve for travel safety and controlled flow
- Large, comfortable barrel designed for extended writing
Feel in the hand
This is a visual writing tool. It creates a sense of immediacy and connection with your ink choice, turning the barrel into part of the experience. It feels clean, functional, and almost clinical in its translucency, yet still engaging due to the constant movement of ink inside the pen.
Who it’s for
- Fountain pen users who enjoy demonstrators
- Ink enthusiasts who love shading, sheen, and shimmer effects
- Writers who prefer high capacity, low maintenance pens
- People who like clean, minimal aesthetics
- Users who enjoy seeing the full ink fill process
Not for
- Those who prefer opaque, traditional pen materials
- Users who dislike visible ink chambers or internal mechanics
- People wanting a compact or pocket-friendly pen
- Writers who prefer cartridge or converter convenience
Practical tips
- Open the shut-off valve slightly while writing to maintain consistent ink flow
- Fill slowly to reduce trapped air bubbles in the barrel
FAQs
Is the pen completely transparent?
No, the Omar Clear is a semi-transparent acrylic, designed to neatly show off ink.
Does the shut-off valve need to be used?
Yes. Open it slightly during writing and close it for transport to prevent leaks.
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 document and shimmer inks?
Yes, but regular cleaning is recommended to prevent feed buildup.
Is it beginner-friendly?
Yes, though it uses an eyedropper system, which requires slightly more care than cartridge pens.
How large is the pen?
It is an oversized fountain pen designed for comfort and long 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 Clear Fountain Pen
- Eyedropper
- Spare small o-ring for back of nib unit
- Instruction leaflet
- Free nib tuning when you order from LarryPOST
Ink pairing suggestions
- High-saturation blues for bold clarity
- Teal and turquoise inks for depth and movement
- Red and burgundy inks for strong contrast in a clear barrel
- Sheening or shimmer inks for visible surface reflection
- Grey inks for a minimalist, monochrome aesthetic
Build your practice
- Pilot Iroshizuku 50mL ink for volume
- Herbin inks, lots of bright colours
- Opus 88 replacement #12 nib unit
Specifications
- Brand:Â Opus 88
- Brand series: Omar
- Launch:Â 2016
- Origin:Â Taiwan
- Nib:Â Jowo #6, stainless steel
- Nib sizes: EF, F, M, B, 1.5mm stub
- Filling system:Â Eye dropper
- Material: Translucent acrylic
- Trim: Stainless steel
- Weight: approx. 34g (capped)
- Length:Â approx. 148mm (capped)
- Diametre:Â approx. 16mm
- Comparable size:Â Twsbi Diamond 580
It prioritises ink visibility above all else, turning everyday writing into a display of colour and flow.
