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Caran d Ache RNX.316 Fountain Pen

Caran d'Ache RNX Fibre Fountain Pen - 1
Caran d'Ache RNX Fibre Fountain Pen - 1 Caran d'Ache RNX Fibre Fountain Pen - 2 Caran d'Ache RNX Fibre Fountain Pen - 3 Caran d'Ache RNX Fibre Fountain Pen - 4 Caran d'Ache RNX Fibre Fountain Pen - 5 Caran d'Ache Gift Box - 6

RRP: $415.71


RRP: £341.67



Dispatched in 7 to 14 days


International delivery is calculated as items are added to the cart

Essential info

  • Precision laser cut fibre design
  • Black PVD finish steel nib
  • Available in broad, medium and fine
  • Accepts the 'standard' short cartridge
  • Can be filled from an inkwell using the converter supplied
  • RNX: round and hexagonal
  • Highest quality 316L stainless steel
  • Diameter: 13mm
  • Length capped: 136mm
  • Length posted: 162mm


The 'rounded and hexagonal' form of the pen, made from high-quality 316L stainless steel, is what gives the RNX.316 it's name. The facets of the hexagonal section of the pen are precision diamond engraved and catch the light in different and subtle ways.

With the fountain pen and rollerball, the grip section of the pen is released by un-screwing the end of the barrel, to refill with ink or replace the cartridge.

The ballpoint pen and mechanical pencil both feature a push-button mechanism.

Reviews (4)

Innovative design that is functional.


What a pen! It is probably the best designed pen I've ever used. The length and weight is perfect for my medium large hands and the balance, with cap posted, is even across: not back heavy. It is so good that I ordered another one (carbon fibre version)

The service was exceptional!! Thx " The Pen Company"

Good pen and Great service


The Pen quality is exceptional, but the nip is only good but can be better. However, you will not find a better service around. Great online store.!!!

The Pen for an engineer.


Good solid simple to use with a very pleasing snap/click as the cap is replaced. The nib feels oily smooth and precise. However the over engineered and entirely unnecessary mechanism for getting to the ink refill is the best part. Feels very much like it's built to last.



This is the most money I've ever spent on a pen and my first Caran d Ache. I absolutely love it, from the way it writes to the way it's made... it's beautiful. First class service to boot.

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