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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 |
One of the smoothest pens i have , very smooth especially with baystate blue and asagao
If you want lamy fine nib size then go for pilot medium
Pilot medium is little thicker than lamy fine but works perfectly well for daily writing
Its a little smoother than twisbi and by a lot margin than lamy fine
Its not as agile and fast moving as twsbi tho but at 2-2.5k? Its a steal
Handy and well arranged slots for pens
Excellent writer
Thick line variation
.8 mm ideal for shimmer ink
Nib and feed exceeded expectations
Would purchase again
In general I like Click pens and especially their nibs. This one I bought for the beautiful acrylic. I am using it with a Diamine Green Ivy Shimmer ink and nib is performing very nicely.
Enjoying my purchase, Thanks online mantra for seemless purchasing experience
Sailor Pigment Ink Bottle (Seiboku - 50 ML) [****]
Kaweco classic sports is great workhourse pen
Amazing build quality and color!
Excellent pen
Kaweco classic sports double broad simply outstanding
Its great quality and service was too good! Highly recommended
Click Falcon Ebonite Carbon Black AG Fountain Pen CLK130090EBKAG
Pilot Custom 74 Dark Red GT Fountain Pen
Very good service. Delivery on time as promised. Package arrived intact. The item is of expected quality in commensuration with the price.
The ink came in a nice bottle and writes smooth with my Lamy 2000
The quality of the oen is top notch, back end is very prompt and supportive.....Keep it up the good work.....


