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TWSBI Obsidian Fountain Pen

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TWSBI Obsidian Fountain Pen

TWSBI Obsidian Fountain Pen

Designed for both newcomers to fountain pens and experienced writers alike, the TWSBI Obsidian Fountain Pen delivers dependable performance with a bold, modern aesthetic.

True to TWSBI’s reputation, the Obsidian features a high-quality, high-capacity piston-filling mechanism that allows for extended writing sessions without frequent refills. Its deep black “Obsidian” finish offers a sleek, understated elegance, making it a versatile choice for everyday writing or professional use. The transparent barrel subtly reveals the ink level, while the screw-on cap posts securely for balanced and comfortable writing.

Each pen is presented in a sleek clear case with a minimalist design and is further protected by an outer cardboard box, making it ideal for gifting or personal use.

A quick no brainer guide in choosing nib sizes in an overly complicated fountain pen world:

  • If you write small, go with an EF
  • For the normal writer, F is the most popular
  • If you tend to lean on a bigger font, M will be perfect
  • B is for statements!! Sign a check in B, write a header in B, do some coloring/shading in B
  • Stub nibs are italic in writing style (have a special card or invitation to write?)

 

PERSONALIZE YOUR PEN WITH CITYLUXE:

  For Every Pen: Laser Precision:
  • Every pen listing offers personalization options.
  • Simply choose your engraving preference during checkout.
  • Add specific instructions or requests in your order notes or contact us via email.
  • Laser technology ensures precise, detailed engraving.
  • Ideal for intricate designs, especially on metal surfaces.
  • Reveals the base material's true color.

MATERIALS WE ENGRAVE:

Lacquer Engraving

Metal Engraving

Plastic Engraving

Resin Engraving

If you're interested in learning more about the engraving process or need comprehensive details about our personalized pen engraving options, please visit our dedicated Engraving Information for Personalized Pens page.

For questions or assistance, reach out to our team. Your satisfaction is our priority.

Specification
Brand TWSBI
Product Type Fountain Pen
Body Material Resin
Diameter - Grip 10.0 mm
Diameter - Max 15.2 mm
Length - Capped 139 mm
Length - Posted 161 mm
Length - Uncapped 131 mm
Filling Mechanism Piston
Capped or Retractable Capped - Screw On
Weight - Whole Pen (Empty) 0.75 oz / 21 grams
Nib Size Chart

TWSBI Nib Size Chart

Select Nib Size
From $37.74

Original: $125.81

-70%
TWSBI Obsidian Fountain Pen—

$125.81

$37.74

Product Information

Shipping & Returns

Description

TWSBI Obsidian Fountain Pen

Designed for both newcomers to fountain pens and experienced writers alike, the TWSBI Obsidian Fountain Pen delivers dependable performance with a bold, modern aesthetic.

True to TWSBI’s reputation, the Obsidian features a high-quality, high-capacity piston-filling mechanism that allows for extended writing sessions without frequent refills. Its deep black “Obsidian” finish offers a sleek, understated elegance, making it a versatile choice for everyday writing or professional use. The transparent barrel subtly reveals the ink level, while the screw-on cap posts securely for balanced and comfortable writing.

Each pen is presented in a sleek clear case with a minimalist design and is further protected by an outer cardboard box, making it ideal for gifting or personal use.

A quick no brainer guide in choosing nib sizes in an overly complicated fountain pen world:

  • If you write small, go with an EF
  • For the normal writer, F is the most popular
  • If you tend to lean on a bigger font, M will be perfect
  • B is for statements!! Sign a check in B, write a header in B, do some coloring/shading in B
  • Stub nibs are italic in writing style (have a special card or invitation to write?)

 

PERSONALIZE YOUR PEN WITH CITYLUXE:

  For Every Pen: Laser Precision:
  • Every pen listing offers personalization options.
  • Simply choose your engraving preference during checkout.
  • Add specific instructions or requests in your order notes or contact us via email.
  • Laser technology ensures precise, detailed engraving.
  • Ideal for intricate designs, especially on metal surfaces.
  • Reveals the base material's true color.

MATERIALS WE ENGRAVE:

Lacquer Engraving

Metal Engraving

Plastic Engraving

Resin Engraving

If you're interested in learning more about the engraving process or need comprehensive details about our personalized pen engraving options, please visit our dedicated Engraving Information for Personalized Pens page.

For questions or assistance, reach out to our team. Your satisfaction is our priority.

Specification
Brand TWSBI
Product Type Fountain Pen
Body Material Resin
Diameter - Grip 10.0 mm
Diameter - Max 15.2 mm
Length - Capped 139 mm
Length - Posted 161 mm
Length - Uncapped 131 mm
Filling Mechanism Piston
Capped or Retractable Capped - Screw On
Weight - Whole Pen (Empty) 0.75 oz / 21 grams
Nib Size Chart

TWSBI Nib Size Chart