on sale Opus 88 Koloro Fountain Pen - Orange

Product Code OP-96083903F

4

In Stock

out of stock

Usually Ships in 1 to 2 Business Days

$93.00

MSRP $

color:
Orange

Not sure which size nib is best for you?

Try our Nib Nook tool to view and compare nib widths using our writing samples. Learn more ›

The Opus 88 Koloro fountain pen is truly unique writing instrument. Featuring a sharp alternating material scheme of orange ebonite and resin, this pen’s design stands on its own.

The Koloro is a traditional Japanese style eyedropper-filled pen with a piston operated shut-off valve. An ebonite piston and rubber gasket seals the feed off from the barrel when fully depressed, reducing the risk of leakage and burping. By unscrewing the ebonite blind cap and loosening the rod at the rear of the barrel, you open up the ink flow to the feed. During long writing sessions, leave the shut-off valve open to take advantage of the Koloro’s impressive ink capacity. Having the translucent resin portions of the pen allows you to see both your current ink level and your nib while capped.

The Koloro features chrome hardware and a stainless steel #5 JoWo nib and includes a glass eyedropper to fill the pen with your favorite ink.

Technical Specs

Condition
New
Brand
Opus 88
Type
Fountain Pens
Color
Orange
Demonstrator

Whether or not the barrel of the pen is translucent, allowing you to see the ink and filling mechanism inside.

Yes
Body Material
Ebonite, Resin
Cap Rotations

For pens with a screw-cap closure, how many rotations it takes to uncap/recap the pen.

3.75
Cap Type

How the cap is opened/closed from the barrel of the pen. Some common options include Snap-Cap, Screw-Cap, Magnetic Cap, or Capless (no cap).

Screw-cap
Compatible inks & refills

Which ink this pen will accept. Choices include bottled ink and various styles of pre-filled ink cartridges.

Bottled inks
Filling Mechanism

How the pen fills with ink. Click here to watch our video tutorial on common filling mechanisms.

Eyedropper
Grip Material
Resin
Nib Size
Extra-Fine, Fine, Medium, Broad
Nib Color
Silver
Nib Material
Steel
Postable

Whether or not the cap fits securely onto the back of the barrel when open.

Yes
Retractable

Whether or not the nib/tip can retract into the body of the pen (usually for click or twist-open style pens).

No
Trim
Silver
Diameter - Body
13.8mm (0.5in)
Diameter - Cap (without clip)
15.9mm (0.6in)
Diameter - Cap (with clip)
19.5mm (0.8in)
Diameter - Grip

Measured from the place most people choose to rest their fingers, which varies with each pen.

9.7mm (0.4in)
Length - Body

The measurement from the back end of the barrel to the tip of the nib.

124.7mm (4.9in)
Length - Cap
63.4mm (2.5in)
Length - Nib

The measured length of the visible portion of the nib when it is installed in the pen, from grip to tip.

18.1mm (0.7in)
Length - Overall (Closed)
142.5mm (5.6in)
Length - Overall (Posted)

When the cap of the pen is posted onto the back of the pen body, this is the measurement of the entire pen including the nib.

159.8mm (6.3in)
Weight - Body
13g (0.5oz)
Weight - Cap
11g (0.4oz)
Weight - Overall
24g (0.8oz)
Max Ink Capacity - Eyedropper

The maximum volume of ink that can fit in the pen when filling the entire barrel of the pen via eyedropper.

2.14ml

Videos

Reviews & Questions