TWSBI Piston Filler Diamond 580 Smoke Rosegold II
The TWSBI Diamond 580 Smoke Rosegold II is a fully disassemblable piston filler made from smoke-gray transparent plastic – the ink reservoir remains visible at all times, and the filled color changes the entire appearance of the pen. Rose-gold accents on the nib, cap ring, internal mechanism, and end cap create a warm contrast to the cool gray of the housing. The piston system holds 1.8 ml of ink and is filled directly from the ink bottle – cartridges are not compatible.
Special Features
- Faceted piston body: The diamond cut that gives the pen its name is not just decorative – the facets prevent the pen from rolling off the table without its cap, and make the ink level permanently readable through the transparent housing.
- Flexible steel nib, rose-gold plated: The nib responds to pressure changes with noticeable line width variation – interesting for anyone who wants to switch between fine lines and more presence without reaching for a second pen.
- Fully disassemblable: All components can be separated without special tools – a wrench and silicone grease are included in the package, making cleaning and maintenance possible right at your desk.
- Gray-transparent plastic housing: Grip section, cap, and piston knob are made of smoke-colored, translucent plastic – the ink is visible at all fill levels, and each ink color makes the pen look different.
- Piston system without cartridge compatibility: The 580 is designed exclusively for filling from the ink bottle. This gives access to the full spectrum of liquid pen inks – from heavily shading iron gall inks to vibrant color variations.
Application & Tips
- Nib sizes EF and F are suitable for tight handwriting, precise notes, and papers with moderate ink fastness – the fine line shows shading particularly clearly.
- Nib size M is the universal all-rounder: sufficient ink flow for rich colors, while still precise enough for longer texts.
- Nib size B produces visible, broad lines – good for headings, address cards, or hand lettering with water-based fountain pen inks.
- Broad nib 1.1 writes angular, italic-like strokes with line width variation between main and hairline strokes – a classic choice for calligraphy beginners and anyone who wants to write letters with character.
- Heavily shading or ink-rich paper – for example, smooth, calendered paper with 90 g/m² or more – lets the rose-gold nib run particularly smoothly and displays shading effects optimally.
- For maintenance: Use the included wrench to loosen the piston mechanism, rinse with clear water, and then treat the piston seal with the included silicone grease – this keeps the mechanism smooth.
- Ink choice: Non-document-proof, water-soluble ink can be flushed out particularly easily and protects the nib in the long term. Document-proof or pigmented ink is only recommended with this pen if the pen is in regular use and cleaned frequently.
For Pen Enthusiasts
The rose-gold plating of the Smoke Rosegold II series has been refined compared to the original Smoke Rosegold – TWSBI has improved both the durability and color depth of the coating. The nib and ink feed are replaceable as a unit, which allows a nib size change without having to purchase an entirely new pen. The faceted plastic barrel keeps the pen's center of gravity centered, which supports even handling during longer writing sessions.
Technical Specifications
| Model: | TWSBI Diamond 580 Smoke Rosegold II |
| Color / Version: | Gray-transparent (Smoke) with rose-gold plated metal accents |
| Housing Material: | Plastic |
| Nib Material: | Steel, rose-gold plated |
| Available Nib Sizes: | EF, F, M, B, 1.1 |
| Ink Reservoir: | Piston mechanism (approx. 1.8 ml) |
| Length Closed: | 142 mm |
| Length with Cap Attached: | 176 mm |
| Length without Cap: | 129 mm |
| Maximum Diameter: | 14.9 mm |
| Origin: | Taiwan |
| Scope of Delivery: | Pen, wrench, silicone grease – without ink |
