
Platinum Fountain Pen Co., Ltd. (Head Office: Tokyo; President: Toshiya Nakata) launched the “Fuji Cloud Scenery Series” in 2023, inspired by the beautiful scenery created by the interplay between Mount Fuji and the clouds swimming around it, and expressing that image throughout the fountain pen using various decorative methods. This time, as the fourth (final) work, we are releasing a limited edition title, ‘Unkai’. As the finale of the series, the motif chosen is the magnificent sea of clouds surrounding Mount Fuji. Layers of clouds layer upon layer, quietly spreading out. Above that, Mount Fuji appears serenely. While changing expressions moment by moment, it imparts a deep sense of tranquility and awe to viewers, capturing the uniquely Japanese majestic natural scenery in a single fountain pen.

What is the < Fuji Series>
The Fuji series started in 2011 to commemorate the release of the #3776 Century, which prevents ink drying.
● Fuji Cloud Scenery Series (2023 ~ 2026)
● Fuji Scenery Series (2017~2021)
● Fuji Gohu Series (2011~2016)
< Product Features of 'Unkai'>
The cap and grip feature colors inspired by the quiet expression of Mount Fuji in the clear early mornings of autumn to winter, illuminated by the morning sun. On the barrel, the sea of clouds, often seen on mornings in that season, stretches out in layers and stretches endlessly, combining lens cuts with groove cutting to delicately and dynamically engrave the scene. Its expression, which changes impressions depending on how the light hits and the viewing angle, is like a sea of clouds swaying in the morning light. Every time you hold it, the magical scenery surrounding Mt. Fuji rises at your fingertips.
● Body and cap: Bicolor in different colors.
● Ceiling decoration: Serial number engraved. Inside the dome, the familiar Fuji Mount nuts from the Fuji series are installed.
● Cap Ring: Beautifully sculpted finish with shading.
● Equipped with slip seal mechanism: Prevents ink from drying out for 2 years, allowing you to write smoothly anytime.
14K Large Nib
Cap ring with sculptural finish
Axis design expressing a sea of clouds
Crown with serial number
Special Ink: Fuji Grape Dye (Ebizome)
Dedicated Package
Fuji Cloud View Series #3776 Century ‘Sea of Clouds’ Limited to 1,500 Pieces Worldwide
● Release Date: July 1, 2026
● Model Number: PNB-650FU-L ♯61 Unkai
● Price: 71,500 yen (tax included)
● Product Specifications:
• Body, sheath, grip, top ornament, tail ornament: resin
• Grip ring, gold ring, heavenly ring, butt ring: metal with rhodium finish
• Clip: Rhodium finish on metal
● Nib: Large 14K pen with rhodium finish (ultra-fine, fine, medium letters)
● Size: Total length 139.5mm× maximum diameter 15.4mm, standard weight 20.8g
● Accessories: Special color bottle ink “Fuji Grape Dye (Ebizome)” 20ml
• Cartridge ink (blue-black): 1 bottle
• Converter – 700A • Dedicated package












