TWSBI Diamond Mini Classic Expand

TWSBI Diamond Mini Classic



  • Pocket pen
  • Full length when cap posted

More details

In Stock

£ 46.99

A shorter, pocket-sized version of the Diamond 580 fountain pen. The barrel is shorter than the standard Diamond series pens but the cap can be posted by screwing onto the end of the barrel to create a full-size pen. TWSBI's philosophy is to promote traditional aspects of owning and using a fountain pen and as such included with the pen are instructions, a wrench and a vial of silicone grease to enable at home maintenance.

This pen only uses bottled ink so check out our collection of bottled fountain pen inks.  The TWSBI Mini can be filled from any fountain pen ink bottle, but for clean and easy refilling, try a TWSBI Diamond 50 Ink Bottle, which is specially designed for refilling TWSBI Diamond fountain pens. 

Replacement Diamond mini nib units are available in extra fine, fine, medium, broad and 1.1mm italic.

Presented in an attractive clear plastic case with a clean modern design.   For protection the case come in a cardboard box to protect the pen and case in transit. 

Note that the nib section of the Diamond Mini is not compatible with other TWSBI fountain pens (eg. Diamond 540, Diamond 580, Vac 700 and Micarta).  See our reference section for more details on TWSBI nibs.

Writing ModeFountain pen
Nib materialStainless steel
Filling typePiston filler
Special nibsItalic/Stub

TWSBI Diamond Mini Instructions

Instructions on the use and care of your pen

Download (1.97M)

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TWSBI Diamond Mini Classic

TWSBI Diamond Mini Classic

Length Capped = 117 mm

Nib length = 19.6 mm

Section length = 19 mm

Section diameter (max/min) = 10.0/9.4 mm

Barrel diameter (max) = 12.7 mm

Total length (not posted, including nib) = 107.8 mm

Total length posted (including nib) = 139.6 mm

Weight = 20 g

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VAT (at 20%) is automatically taken off for destinations outside the EU.

If an item is in stock, the words "In stock" will be shown. If an item is out of stock, the approximate number of days before we get another delivery will be shown instead. You will still be able to order the item, but there will be a delay before we can dispatch your item(s).

Nib choices for fountain pens
If we show the pen with medium nib in stock it means we have stock of that pen. If you select another nib size and the website doesn't say "in stock" we can usually supply that pen immediately as we keep extensive supplies of nibs from all our manufacturers