on salePlatinum #3776 Century Fountain Pen - Unkai (Limited Edition)

Product Code Plat-PNB-650FU-L-61-EF

In Stock

Coming in August

on salePlatinum #3776 Century Fountain Pen - Unkai (Limited Edition)

Product Code Plat-PNB-650FU-L-61-EF

In Stock

Coming in August

$620.00
Color:
Unkai
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)
Add Disposable Ink Cartridges + $3.50 Platinum Black - Ink Cartridges (2-Pack)
Color/Qty:
$3.50
$3.50

Introducing the newest of the #3776 Century Fuji Unkei series, “Unkai".

Platinum Penʼs flagship #3776 CENTURY inspired the “Fuji Five Lakes” (2011‒2016), created to commemorate its launch, followed by “Fuji Shunkei” (2017‒2021), which expressed Mt. Fujiʼs seasonal beauty through masterful engraving. In 2023, a new series was born: “Fuji Unkei.” Inspired by the scenery created by Mt. Fuji and the clouds drifting around it, the series combined the first bicolor design ever used on the #3776 CENTURY with intricate engraved detailing. As its final release, we are proud to present Unkai (“Sea of Clouds”).

For this concluding edition, we chose the magnificent sea of clouds surrounding Mt. Fuji as its motif. Layers of clouds spread silently into the distance as Fuji rises serenely above them. This ever-changing yet tranquil scene of majestic Japanese nature is captured in a single fountain pen.

Limited to just 1,500 pieces worldwide, "Unkai" is the final release in the Fuji Unkei series. This edition captures the delicate elegance of cirrus clouds with an intricate blend of guilloche and V-blade engraving on a translucent resin body.

For the cap and grip, colors were chosen to evoke Mt. Fujiʼs mountainside as it quietly reveals itself in the clear early mornings of autumn and winter, illuminated by the rising sun. On the barrel, lens-cut facets and carved grooves portray a sea of clouds spreading in layered formations, both delicately and dynamically. Changing with the light and the angle of view, its expression recalls a sea of clouds shimmering in the morning sun. Each time you hold the pen, the dreamlike landscape of Mt. Fuji rises vividly at your fingertips.

At the heart of this pen is a rhodium-plated 14K gold nib, offering Platinum’s signature smooth writing experience. The pen also features a domed finial with an engraved serial number, paying tribute to Mt. Fuji itself. To commemorate the release of the #3776 CENTURY Fuji Unkei Series “Unkai,” a special 20ml bottle of ink, “Fuji-no -Ebizome,” is included. The color is inspired by the moment when Mt. Fuji is veiled in the dim light of twilight, its slopes sinking into grape-red hues. As the light shifts, the lustrous reddish-purple gently softens, revealing a muted tone with a subtle green nuance. It evokes Mt. Fuji at dusk, whose expression changes with every passing moment. 

As always, the pen includes Platinum’s patented Slip & Seal mechanism to keep your ink fresh for up to 24 months. Click here to shop all compatible Platinum ink cartridges.

Condition
New
Brand
Platinum
Type
Fountain Pens
Color
Clear, Green
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 Rotations

For pens with a screw-cap closure, how many rotations it takes to uncap/recap the pen.

1.75
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).

Screw-cap
Compatible inks & refills

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

Bottled ink, 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
Grip Material
Resin
Nib Size
Extra-Fine, Fine, Medium
Nib Color
Silver
Nib Material
14k Gold
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
13mm (0.5in)
Diameter - Cap (without clip)
15mm (0.6in)
Diameter - Cap (with clip)
17mm (0.7in)
Diameter - Grip (mm)

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

10.1mm
Length - Body

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

120mm (4.7in)
Length - Cap
67mm (2.6in)
Length - Nib

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

23mm (0.9in)
Length - Overall (Closed)
140mm (5.5in)
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.

159mm (6.3in)
Weight - Body

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

10g (0.4oz)
Weight - Cap
10g (0.4oz)
Weight - Overall (g)
20.0g
Max Ink Capacity - Cartridge

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

1.27ml
Max Ink Capacity - Converter

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

0.82ml

Platinum Black - Ink Cartridges (2-Pack)

Product Code Plat-SPN-100A-1

In Stock

out of stock

$3.50
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Frequently Asked Questions

How do I fill this fountain pen from an ink cartridge? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

A cartridge is 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!

This pen uses proprietary Platinum ink cartridges, which are available in a few colors.

You can learn more about how to actually install an ink cartridge on our blog, or in this video tutorial:

How do I use a converter? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

A converter goes in the place of where the ink cartridge would normally go. From there, you can fill your fountain pen from bottled ink.

A converter is 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.

We have a great video showing how to use a converter here:

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

It mostly comes down to flushing out the pen with water, and sometimes a little bit of pen flush if the ink is really stuck. 

We put together a blog post with step-by-step instructions, or you can watch the video here:

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.

For even more information about fountain pen cleaning, check out our Fountain Pen 101 video blog post.

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

We accept returns for up to 30 days from purchase. 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.