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Mitsubishi Pencil Corp.

Uniball Signo DX

Uniball Signo DX

$2.50 USD
$2.50 USD
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Tip Size
Ink Color

The Uniball Signo DX, a Japanese gel ink pen in .28, .38, and .5, writes smoothly to create bold colorful strokes. This pen also happens to be my absolute favorite Japanese gel pen. I have been using the bordeaux-black and brown-black regularly since 2000. I find the tips to be stronger than most gel pens, which is important to 'heavy-writers' like myself. Please see details below regarding the recently discontinued colors. Some of these are still available on our shop as a last chance opportunity!



  • Strong super-fine tip
  • .28 size available in Pink, Red, Orange, Blue, Blue Black, Brown Black, and Black
  • .38 size available in baby pink, pink, pure pink, red, bordeaux-black, orange, mandarin orange, lime green, emerald, green, green-black, sky blue, light blue, blue, blue-black, violet, black, brown-black, apple green, blue green, purple, lilac, light pink, yellow, beige, khaki, brown, gray, and dark gray.
  • .5 size available in Pink, Red, Orange, Blue, Blue Black, Brown Black, and Black.
  • Refillable
  • If you'd like to try a click-top pen with the same amazing Uniball ink, consider the Uni Style Fit Single!

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Customer Reviews

Based on 17 reviews
71%
(12)
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(2)
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6%
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Alexandra R.
Uniball Signo DX

Bought this in a 0.5 golden yellow. Comes across a tad orange, but I'm guessing it would have to in order to be seen well enough. Its smooth glide across paper and me being able to clearly make out the color makes this a purchase I'm quite satisfied with.

S
Sarah T.
Uniball Signo DX

I originally got the maroon .38mm in one of the starter pen packs, and quickly fell in love. I love smooth pens that don't smudge and have a fine, distinct line, and this is it. I love all the variety of colors, and my college notes are more concise now. I went on to buy red, black, and emerald in .38mm, and lilac in .28mm. I loved the .38mm and almost used the black one all up, but I found the .28mm would occasionally struggle with dryness and would quit in the middle of continuously writing. This didn't happen with the .38mm, so I'll be sticking with them from now on, since they still have a fine tip but never quit on me.

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Alexandra R.
Uniball Signo DX

It's difficult to give an opinion about the PRUSSIAN BLUE because I don't seem to find it much different than the BLUE. I've discovered that I'm not a big fan of the 0.38; although, I will use this size if the color is deep enough to provide good contrast, as I find with the GREEN BLACK, BLUE, BLACK BLUE, BLACK, AND BORDEAUX BLACK. Also, I highly recommend (for an alternative to the PRUSSIAN BLUE) the Zebra Sarasa Vintage BLUE GRAY. With this being said, if you like blue ink and a fan of the Signo DX line in a 0.38 tip, then you'll like
the PRUSSIAN BLUE.

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Alexandra R.
Uniball Signo DX

My review of the 0.5 PINK is based in part on how well I can see the writing against white/ivory colored paper. I find I need a higher level of contrast to see writing optimally. While I suspected the pink might be too light for my liking, I had hoped the larger tip size would make a difference. Sadly, it did not. I also purchased the 0.38 PRUSSIAN BLUE. I was hoping for more of a difference between this particular color and the BLUE. At first glance, I could not differentiate between the two. After staring for a moment, I could see that the PRUSSIAN BLUE was similar to a denim blue and found the BLUE the brighter of the two. Still, not enough of a difference for me.

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Alexandra R.
Uniball Signo DX

The Signo DX pen with a 0.38 tip in DARK GRAY provides me with what I had hoped for... an ink closest in color to that of graphite lead and a smoother writing experience. I'm satisfied with its performance. The GREEN BLACK is fantastic! Although a 0.38 doesn't produce a wide enough line for my liking, this particular color is dark enough to provide enough contrast which has made the smaller tip size inconsequential. This color is a great alternative to the everyday work colors of black and blue. I love the MANDARIN ORANGE in the 0.5 tip. It offers a smooth writing experience. The line produced is wide enough and this bright orangey shade is bright enough to offer great contrast which is something I need in order to really enjoy a pen.

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