Never shinier: rOtring 900 0.7mm


In 1990, rOtring launched the 900 series of pens and pencils. The original version came in shiny chrome, like a premium metal-shod version of the plastic Altro from 1989, except instead of its point-push automatic mechanism, the 900 boasted a body-knock configuration.


I’d learned about the 900 as I was researching the 500 and 600 series and was intrigued with its decidedly ‘non-Mistral / non-Cross’ design. I managed to get a 900 ballpoint first, in matte chrome (from a later debut in 1992) for a fairly reasonable sum, well under $120.

I had reasoned that a ballpoint was simply more useful at work and would’ve been equally happy if it came in either finish. As luck would have it, it would be the matte chrome version. What I wasn’t so thrilled with was that despite its girth, the 900 still used a dinky little D1 refill like all the rest of the extended body-knock family. Ah well, let me get hold of a pencil and call it a day?


Easier said than done! As I would discover, sellers were now charging $250 or more for the 900 mechanical pencil, never mind which finish. I kept hoping for a lucky break but it never materialized… until this year when @Leonov offered to help me buy one in exchange for other pencils. I think we each got a lot out of this trade :slight_smile:

I doubt I will ever seek out a shiny 900 ballpoint or a matte pencil, and the fountain pens are not even on my radar. The one exception is a unicorn of sorts: I swear I once saw a standard knock 900 ballpoint for auction but brushed it off as an inferior variant. I wouldn’t call it that if I saw one today… especially if it takes properly sized refills!

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Does anybody know how to refill the Rotring 900 body knock mechanical pencil?

You have to separate first the upper and lower halves of the body (it’s a matter of unscrewing lightly, if I remember correctly): grab the grip area close to the tip with one hand and the upper half close to the clip with the other, then unscrew. Separate the two halves gently.

Once you free the internals, you shall see a characteristic conical shape emerging from the lower part (i.e., the writing end), which is the main element of the body knock mechanism; gently pull that conical shape, you shall see a metal tube emerging under that (like the trunk under a christmas tree), where you can put the refills.

Place the conical element back, push until you feel resistance, screw back together the two halves, et voilà! You should have made it. :slight_smile:

There might be topics here or on Reddit with a dismantled rOtring 900 where you can appreciate the internals and the details I pointed here. I would have taken some pictures, but I don’t have the pencil with me, so I hope the instructions will be enough.

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Thank you Lenov, It’s clear. I appreciate your help