Pens and Pencils | Reviews and Data

Rotring 600 vs Rotring Newton Comparison

Rotring 600 vs Newton

The Rotring Newton is often confused with the older, more desirable Rotring 600. Both are great pens and they are remarkably alike, but they are distinctly different models and while the Newton echoes the design of the 600 it is not a Rotring 600. Sorry to say it, but there is no “Rotring Newton 600,” that’s just something people write in auctions.

Does any of this matter though? Are we just splitting hairs? Or is there a real difference between the Rotring 600 and the Newton pens. Let’s find out.

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Pilot Custom 74 vs Platinum 3776 Century: How Do You Choose?

Custom 74 vs 3776 Century

The Pilot Custom 74 and the Platinum #3776 Century are both excellent fountain pens. They are also shockingly similar — they are clearly direct competitors to one another. But give how similar they are on paper, how do you choose one or the other? And which should you buy, the #3776 Century or the Custom 74?

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What Is The Best Multi-Pen?

Best Mult-Pen Shootout

Multi-pens are one of those love-them-or-hate-them products. You either need multiple colors, and possibly a pencil, and want them in a single instrument, or the idea has zero appeal to you. After all, is it that much of a challenge to carry three pens on you? Or a pen and a pencil?

Let’s assume you are in Camp “Love Multi-pens” and are in the market for a new pen. Time to find the best multi-pen sold today!

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Lamy Rollerball and Ballpoint Refill Finder

Have a Lamy pen but confused about the refill you need to fit it? It’s very easy to know which refill you need because Lamy makes so few refills!

Lamy Rollerball Refill Finder

Do you have a Lamy rollerball? There are only two options: the Lamy M63 and M66. The M63 is for capped pens while the M66 is for capless pens. That’s all you need to know except for if your pen has a cap or not!

Here is a list of Lamy rollerballs, if you’d rather just identify your rollerball pen and refill that way…

  • 2000: M63
  • Safari: M63
  • Vista: M63
  • Al-Star: M63
  • Lx: M63
  • Studio: M63
  • Imporium: M63
  • Dialog 2: M63
  • Scala: M63
  • Accent: M63
  • Aion: M63
  • Logo: M63
  • Tipo: M66
  • Swift: M66

Curious about the differences between the Lamy M66 and the M63? This video should help!

Lamy Ballpoint Refill Finder

If you have a Lamy ballpoint pen then your job is even easier, because Lamy only makes one full-sized ballpoint refill: the M16. There is also the Lamy M22, but that’s for small pens.

Lamy ballpoint pens that use the M16 include…

  • 2000
  • Safari
  • Vista
  • Lx
  • Imporium
  • Scala
  • Accent
  • Studio
  • Aion
  • Noto
  • CP1
  • Logo / Logo M / Logo M+
  • Econ
  • Unic

The tiny Lamy Pico and Lamy Scribble ballpoint both use the tiny M22 refill.

This guide from Lamy should help as well:

Lamy Refill Guide



Welcome to Unsharpen.com

Welcome to Unsharpen.com, a website about writing utensils. At this point the Unsharpen concept has is only loosely defined, but in the coming days, weeks, and months we hope to fine-tune the idea and make Unsharpen into a destination for information about pens, pencils, paper, and much more.