on sale Franklin-Christoph Model 31 Fountain Pen - Orion (Limited Edition)

Product Code FC-31FP-OR-EF

In Stock

Launching Feb. 19 at 2pm ET.

Usually Ships in 1 to 2 Business Days



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 ›

Introducing our second exclusive collaboration with Franklin-Christoph! This limited edition Model 31 style fountain pen features a stunning custom blended resin that we've named Orion. The constellation-inspired sparkling resin features a swirling pattern of blue, black, and silver. The design is unique in every pen and no two are exactly alike. 

Only 100 pens of this design are available.

The Model 31 pen has a screw-cap to open/close and pushes to post, and has a silver clip. It comes with a standard international converter and fits both short and long standard international cartridges. You can also convert it to eyedropper fill. 

It is completed with a smooth-writing #6 JoWo nib in a variety of size offerings.

We do our best to photograph the pens to show how they will appear in person, but due to the nature of the material, expect some variation in the pattern from what you see here. We’re unable to honor any preferential pattern requests at this time.

Click to shop all compatible short or long standard international ink cartridges.

Technical Specs

Fountain Pens
Black, Blue, Silver

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

Body Material
Cap Rotations

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

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).

Compatible inks & refills

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

Bottled inks, standard international short cartridges, standard international long cartridges
Filling Mechanism

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

Cartridge, Converter, Eyedropper
Grip Material
Nib Size
Extra-Fine, Fine, Medium, Broad, 1.1mm Stub, 1.9mm Music
Nib Color
Nib Material

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


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

Diameter - Body
14.1mm (0.56in)
Diameter - Cap (without clip)
16.1mm (0.63in)
Diameter - Cap (with clip)
20.2mm (0.80in)
Diameter - Grip

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

10.6mm (0.42in)
Length - Body

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

129.2mm (5.09in)
Length - Cap
66.1mm (2.60in)
Length - Nib

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

19.0mm (0.75in)
Length - Overall (Closed)
141.7mm (5.58in)
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.

172.9mm (6.81in)
Weight - Body
15.0g (0.53oz)
Weight - Cap
10.0g (0.35oz)
Weight - Overall
25.0g (0.88oz)
Max Ink Capacity - Cartridge

The maximum volume of ink that can fit in the pen when using a cartridge.

Max Ink Capacity - Converter

The maximum volume of ink that can fit in the pen when using a converter.

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.


Reviews & Questions