on salePlatinum Prefounte Fountain Pen - Night Sea

Product Code Plat-PPF-800-59-03

In Stock

out of stock

on salePlatinum Prefounte Fountain Pen - Night Sea

Product Code Plat-PPF-800-59-03

In Stock

out of stock

$11.00
Color:
Night Sea
Nib Guide

Not sure which size nib is best for you?

Try our Nib Nook tool to view and compare nib widths using our writing samples. Learn more ›

ENHANCEMENT OPTIONS
Platinum Black - Ink Cartridges (2-Pack)
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$3.50
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Platinum Black - Ink Cartridges (2-Pack)

Product Code Plat-SPN-100A-1

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Platinum Cartridge Converter - Silver Trim
Add a Refillable Converter + $11.00 Platinum Cartridge Converter - Silver Trim
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$11.00
$11.00

Platinum Cartridge Converter - Silver Trim

Product Code Plat-Converter-700A

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Since its launch in 2007, the Platinum Preppy fountain pen series has grown in popularity among a wide range of age groups around the world. The all new Platinum Prefounte is a model designed more for adults that boasts a sense of high quality while retaining the basic functions of Preppy fountain pen. Subdued colors are employed for the transparent body made of resin. The graphics are also kept simple, while the metal clip adds an accent to produce a chic, translucent appearance ideal for adults. The stainless steel nib features a welded tip made of an abrasion-resistant special alloy, which provides an excellent writing feel.

The Prefounte fountain pen is equipped with Platinum's “Slip & Seal Mechanism” that prevents ink from drying out in the pen with the cap on for one year. It accepts proprietary Platinum ink cartridges (one blue-black cartridge is included) or a Platinum converter (sold separately) to fill with bottled ink.

For those who seek a smart and casual fountain pen, the Prefounte is ideal for both business and daily use, as well as for fountain pen beginners.

By converting this pen to an eyedropper, you can fill the entire barrel with ink for maximum ink capacity! All you need to do is add an o-ring and a small amount of silicone grease to the threads (available separately).

Click here to shop all compatible Platinum ink cartridges.

Condition
New
Brand
Platinum
Type
Fountain Pens
Color
Blue
Demonstrator

Whether or not the barrel of the pen is translucent, allowing you to see the ink and filling mechanism inside.

Yes
Body Material
Resin
Cap Type

How the cap is opened/closed from the barrel of the pen. Some common options include Snap-Cap, Screw-Cap, Magnetic Cap, or Capless (no cap).

Snap-cap
Compatible inks & refills

Which ink this pen will accept. Choices include bottled ink and various styles of pre-filled ink cartridges.

Bottled inks, Proprietary Platinum ink cartridges
Filling Mechanism

How the pen fills with ink. Click here to watch our video tutorial on common filling mechanisms.

Cartridge, Converter, Eyedropper
Grip Material
Resin
Nib Size
Fine, Medium
Nib Color
Silver
Nib Material
Steel
Postable

Whether or not the cap fits securely onto the back of the barrel when open.

Yes
Retractable

Whether or not the nib/tip can retract into the body of the pen (usually for click or twist-open style pens).

No
Trim
Silver
Diameter - Body
12.2mm (0.48in)
Diameter - Cap (without clip)
13mm (0.51in)
Diameter - Cap (with clip)
15.7mm (0.62in)
Diameter - Grip (mm)

Measured from the place most people choose to rest their fingers, which varies with each pen.

10.0mm
Length - Body

The measurement from the back end of the barrel to the tip of the nib.

121mm (4.76in)
Length - Cap
59.7mm (2.35in)
Length - Nib

The measured length of the visible portion of the nib when it is installed in the pen, from grip to tip.

14.5mm (0.6in)
Length - Overall (Closed)
138mm (5.43in)
Length - Overall (Posted)

When the cap of the pen is posted onto the back of the pen body, this is the measurement of the entire pen including the nib.

153mm (6.02in)
Weight - Body

If a converter is included with the pen, this weight is reflected in the total.

6g (0.21oz)
Weight - Cap
4g (0.14oz)
Weight - Overall (g)
10.0g
Max Ink Capacity - Cartridge

The maximum volume of ink that can fit in the pen when using a cartridge.

1.49ml
Max Ink Capacity - Converter

The maximum volume of ink that can fit in the pen when using a converter.

1.04ml
Max Ink Capacity - Eyedropper

The maximum volume of ink that can fit in the pen when filling the entire barrel of the pen via eyedropper.

4.45ml

Customer Reviews

Based on 98 reviews
69%
(68)
18%
(18)
8%
(8)
2%
(2)
2%
(2)
W
William B.
0 for 2

I bought two of this pen. One several years ago when they first came out and another one recently in 2024. Both times it was the same experience. The pen would hard start almost every time uncapped and while writing. The first time the pen dried up completely after only a few weeks of being set aside. The second time I got so fed up with it I threw it away. I also bought a Procyon and a Desk Pen and they have ALL acted the same. The only Platinum pens I have ever had work for me are the Preppy. I really want a 3776 but there is no way I can risk this type of quality and experience with such an expensive pen.

T
Tracie
Cheap pen, cheap thrills

I thought this pen was going to be better than what most were saying. It is not as enjoyable to write with as my Prera, Kakuno. this seems to write slower. I opened the tines and still not flowing very heavy. Maybe it is the cartridge and may need to fill the body up with ink, but I would be scared it might get crushed being a cheap plastic instead of a heavy resin or metal. And the converters are too expensive to buy separately which shocks me. My jinhaos come with a converter, why can't these for a low end pen? I am not extremely thrilled with this pen but will use it if I get a shimmering ink for a pen I don't mind if it gets clogged with pigmented ink. Time will tell.

A
Anonymous
Platinum Prefounte Fountain Pen - Night Sea

This is my 2nd one, bought because I love the first one so much and wanted one to carry w/ me!

A
Anonymous
good everyday pen

I bought this pen for the gorgeous color and because Platinum cartridges hold a large amount of ink. I've had one Platinum Preppy before this which I've lost track of but it was very much the same model without this dress. It is meant for daily, continuous use and it's perfect for regular loose-leaf paper with its Fine nib. Once i get going i forgive the dry start because it runs so smoothly. I dislike the hard and loud snap cap but it trains me to be mindful of capping too often, unnecessarily, before I've finished all my writing business. So it enables me to be more efficient in a writing session.

D
David
Puts way more expensive pens to shame.

Platinum has nailed the colors and styling of the Prefounte series. This pen punches way above its price range. The pen is small and light weight, but still offers a good grip. The styling, colors, price and features of this pen makes you wonder why bother with Sailor Pro Gears and Platinum 3776. I hope Platinum will release a extra fine (0.2mm) version of the Prefounte series. It's not a big deal to swap a 0.2mm nib from a preppy, but still.

FAQs about Fountain Pens

How do I fill a fountain pen with ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It depends on the pen's filling mechanism, which you can find in the Technical Specs section above. 

Here's a quick definition of the most common filling mechanisms:

  • Cartridge - A small, disposable, sealed plastic reservoir that holds fountain pen ink. These come pre-filled with ink, and typically you just push to insert them into place and you'll be ready to write! Check out our quick guide here.
  • Converter - A detachable and refillable ink reservoir that allows you to use bottled ink in a cartridge-accepting pen. Typically you will install the converter into the grip section, dip the nib/feed into the ink, and twist or pull the converter knob to draw ink into the converter. Here's a video for how to fill a cartridge/converter pen using a LAMY pen as an example.
  • Eyedropper - A pen that utilizes the entire barrel as a reservoir for ink. Ink is directly filled into the barrel, allowing for a high ink capacity. Here's a video on how to do it!
  • Piston - A type of filling system that uses a retracting plunger inside a sealed tube to draw ink into a pen. They are typically either twist or push-operated. These pens cannot accept cartridges or a converter, and only fill from bottled ink.
  • Vacuum - A push-style piston that uses pressure to fill the large pen body with ink. They seal the ink chamber when closed, making it ideal for flying without risk of leaking. Check out our video on how to use a vac filler here.

Check out more info on these filling mechanisms including a video on how to fill each one on our blog.

How do I clean a fountain pen? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It depends on the filling mechanism, but it mostly comes down to flushing it out with water, and sometimes a little bit of Pen Flush if the ink is really stuck. 

It's a bit easier to show than to tell, so we've put together a few quick videos showing you the process:

How often do I need to clean my fountain pen? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

We recommend a good cleaning every 2 weeks, and any time you change ink colors. 

Water will usually do the trick, but we recommend you use our Goulet Pen Flush if the ink has been left in the pen for a while and could have dried up, or when you’re switching ink colors.

My pen won’t write! What do I do? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

First things first... make sure you have ink in the pen! Be sure that the ink cartridge or converter is seated properly in the pen, and that you aren't out of ink.

We always recommend you give your pen a good cleaning first, using our Goulet Pen Flush, or a drop of dish soap in some water. New pens often have some machining oil residue left in the feed, so a good cleaning often does the trick first.

If that still doesn't work, try priming the feed. This consists of either dipping your pen nib and feed in ink, or forcing ink from the converter down into the feed. 

If it’s still not working after that, please reach out to us so we can help! 

What's your return policy? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

You can submit a return request within 30 days of your order date. You can read all our Return Policies here.

To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.

Please note we are unable to accept a return of any Namiki or Sailor Bespoke fountain pen for any reason once it has been used with ink. Please thoroughly inspect and dry test the pen before use.