Platinum Preppy Fountain Pen Crystal Fine
- Fine 0.3 nib, stainless steel
- Slip and seal cap, airtight
- Translucent polycarbonate barrel
- Refillable, ink cartridge included
- 9 g, contoured grip, snap closure
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A light fine-nib fountain pen from Japan with a see-through barrel and an airtight cap. It carries no warranty and offers no water protection.
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ASIN: B07CGC9ZKQModel: PSQC-400Category: Fountain Pens
Overview
A slip and seal cap closes airtight on the translucent polycarbonate barrel, which is what stops the ink from drying out between uses. A fine stainless steel nib and a contoured grip make everyday writing easy.
The clear barrel shows the ink level at a glance, and a cartridge is included so writing can start at once. Refilling is possible for repeat use. The ink is not water resistant, so wet notes can smear.
Who it's for
Adults new to fountain pens and daily note takers will like the fine nib and the clear body. The cap protects ink during long gaps between use. Heavy-handed writers or those wanting a metal barrel may prefer a sturdier pen.
Pros and cons
- Airtight slip and seal cap
- Translucent barrel shows ink
- Fine nib for small writing
- Ink not water resistant
- Light plastic barrel
Performance notes
The airtight cap seals around the nib, so ink stays wet during gaps between writing. A fine nib gives a narrow line that suits notes and lists. Water-based ink flows from the cartridge and can smear on contact with moisture.
Specifications
| Brand | Platinum |
|---|---|
| Model | PSQC-400 |
| Dimensions & fit | |
| Line Size | 0.3 |
| Item Dimensions | 5.43 x 0.51 x 0.51 inches |
| Item Weight | 9 g |
| Construction & materials | |
| Material | Polycarbonate Stainless Steel |
| Included components | |
| Included Components | Ink Cartridge |
| Warranty & support | |
| Warranty | No Warranty |
| Other details | |
| Writing Instrument Form | Fountain Pen |
| Nib Point | Fine |
| Closure Type | Snap |
| Ink Base | Water |
| Grip Type | Contoured |
| Water Resistance | Not Water Resistant |
Frequently asked questions
How long is the Platinum Preppy PSQC-400?
The listing gives 5.43 inches in length and 0.51 inches in diameter.
Does it come with ink?
Yes. An ink cartridge is listed as included, and the pen is refillable.
Is the ink waterproof?
No. The specs list it as not water resistant and the ink base as water.
How does the cap work?
A slip and seal mechanism makes the cap airtight so the ink does not dry out.