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The TWSBI Diamond 580 is the 21st Century interpretation of a classic writing instrument. The TWSBI Diamond 580 excels with a transparent resin construction that can be disassembled using the included wrench. The Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design. The result is an eye-catching writing instrument that is simultaneously appreciative of the past and relevant in the present. The modern writer can appreciate the stainless steel nib's smooth writing quality, the high volume ink capacity, and the ability to take good care of their pen. The Diamond 580ALR has an aluminum grip section and piston rod to add substantial style to this fountain pen. The matte grip section and cap top ring feature concentric, ringed engravings. The internal piston-filling mechanism holds about 2 ml of ink and can be completely taken apart for thorough cleaning. Instructions and silicone grease are also included to aid in the maintenance of the pen.
With a history of more than 40 years of manufacturing, including producing high-end pens for other brands, Ta Shin Precision decided to start selling under their own brand, TWSBI. The name TWSBI is made up from TWS and BI. ‘TWS’ is the reversed initials of the phrase ‘San Wen Tong’, translated Hall of Three Cultures, and ‘BI’ literally means writing instrument.
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| Condition | New |
| Brand | Twsbi |
| Brand Origin | Taiwan |
| Product Code | M7441190, M7441200, M7441210, M7441220, M7441230 |
| Type | Fountain Pen |
| Brand Colour | Caribbean |
| Colour | Blue |
| Body Material | Resin |
| Mechanism | Cap on / Cap Off |
| Cap Type | Screw Cap |
| Compatible Converter | Bottle Fill Only |
| Filling Mechanism | Piston Filler |
| Grip Material | Aluminium |
| Nib Size | Extra Fine, Fine, Medium, Broad, STUB 1.1mm |
| Nib Colour | Black |
| Nib Material | Steel |
| Postable | No |
| Trim | PVD Plated |
| Diameter (MM) | 13 |
| Length - Closed (MM) | 142 |
| Weight (gms) | 31 |
| Warranty Info | 2 Year warranty Valid against manufacturing defect only |
| Package Content | 1 Fountain pen includes a wrench and silicon grease with nice twsbi gift box |
Thanks to OnlineMantra for delivering this ink so quickly. The packaging was also excellent.
The ink meets all expectations.
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Sailors are known for their pen designs and this did not dissapoint. Its a beautiful cigar shaped pen with pale pink colour,reminded me of sakura flower in japan, with the perfect fine nib. Its a beautiful writer.
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Very well made and very comfortable pen. Highly recommended for daily use or as a gift
Surprise winner, for this cost. I had it for 2 weeks and it is divine - flow - writing and weight. It is a winner.
Got it next day after Order. Well packed.. Beautiful colour. Great shading
The fit and finish of this pen punches way above its weight. The EF nib is simply too good and I think among the best I've used. Tempted to buy many many more. I already have most of these pens in varying combinations, but the writing feel makes us want to buy again and again!
I had purchased sailor souten ink , this ink is really good , good variety of blue, I tried in varieties of pens with different nib sizes like medium , fine and extra fine in all the nib sizes it writes very well , recommend this ink for sure , must try
Very nice
it is propritory Converter .Hence only this will fit
Great looking bottle. Nice looking ink. One might need proper medium (German nib) or broad nib to see the sheen.
Promptly shipped. It is one of the best and well behaved noodlers Ink I have bought. The blue color is truly blue.
Excellent pen
