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Specialising in innovative in-built mechanisms for quicker, easier filling
The TWSBI Diamond 580 matches superior craftsmanship with distinctive design, creating a writing instrument every pen aficionado will covet. The striking diamond faceted barrel prevents your pen from rolling off the table, whilst the transparent construction allows you to see the piston fill workings and remaining ink levels. Sitting comfortably in the hand, this durable, lightweight fountain pen is finished with a screw-close cap and rubber O-ring to prevent leaks and drying. Match the Diamond 580 with the TWSBI Diamond Ink Bottle for an easy, fuss free filling experience.
All TWSBI fountain pens can be disassembled for cleaning and maintenance. TWSBI includes the tools to do so, but recommend this is only carried out by experienced fountain pen users. This should only be carried out as part of long term servicing of the pen; it will not need to be done straight away. All disassembly is carried out at the owners risk!
Loads of good customer reviews submitted through feefo
All orders placed before 3pm Mon-Fri are despatched the same day (except on a bank holiday), even if your order has personalisation. Orders placed after 3pm, at the weekend or on a bank holiday are despatched next working day.
We deliver worldwide with a choice of standard (tracked post) and express (DHL air) delivery for most countries. Standard delivery to European countries is €6.50 and takes approx. 2-5 working days, whilst express is €20 and takes 1-2 days. To USA we offer DHL air 2-5 days as a standard service for $8. Delivery charges and estimated times vary for rest of world countries, please see our delivery page for more information.
Please return any unwanted items within 21 days of purchase. The item must still be in a re-saleable condition and returned with proof of purchase. Items that have been personalised cannot be returned unless they are faulty. Please email support@penheaven.com if you wish to return an item, and we can provide a returns label. The charge from Europe is €8 and £10 from most other major countries.
Should you receive a damaged or incorrectly dispatched item, please inform us within 7 days of receipt, so we can advise you on the return of the item. Call 0208 731 8610 or email support@penheaven.com. A returns label will be provided free of charge
TWSBI was named for the Chinese phrase “San Wen Tong” (Hall of Three Cultures). These initials were reversed (TWS) and "Bi" added (literally meaning writing instrument) to create the TWSBI name
Specialising in innovative in-built mechanisms for quicker, easier filling
Loads of good customer reviews submitted through feefo