Sailor Pro Gear Slim - Princess Raden - Princess Koto

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Sailor Pro Gear Slim - Princess Raden - Koto. 

Sailor's Princess Raden series takes inspiration from the graceful, noble-spirited princesses of classic Japanese fairytales for these four pens. 

Each pen in this series is a testament to the enduring allure of these mythical characters, using iconic motifs and colors that combine to tell a beautiful story. From delicate cherry blossoms to majestic dragons, every detail is intricately expressed with Raden (mother-of-pearl) and “yubi maki-e” on the barrels and caps, ensuring that each pen is a true work of art.

A fallen Heike clan princess was washed ashore and saved by seaside villagers. To thank them, she played a “koto” harp beautifully each day on the beach, but soon fell ill and passed away. Ever since, the beach sand became musical sand, and the beach was named “Beach of Koto.”

  • 14k rhodium-plated gold nib
  • Silver trim
  • Nib: Fine, Medium Fine, or Medium
  • Material: PMMA resin with mother-of-pearl/raden and yuubi maki-e techniques on barrel and cap
  • Fill mechanism: Cartridge or converter (Sailor proprietary) 
  • Comes with converter and cartridge
  • More Sailor Princess Raden


  • Diameter: 1.7cm
  • Length (capped): 12.4cm
  • Weight: 16.8g

Sailor was founded in 1911. The founder Kyugoro Sakata was given a fountain pen by a friend returning from the UK after studying at the Royal Navy. He was inspired and determined to start making fountain pens in Japan. Sailor became the first fountain pen company in Japan, and earned many more firsts in Japan—first ballpoint pen in 1948, first ink cartridge in 1954 and first brush pen in 1972, etc.

In the 1970s, Sailor made a popular beginner fountain pen, "Candy," that sold more than 15 million within a few years. However, the number of the fountain pen users were declining as ballpoint pens became more mainstream.

In 1981, Sailor decided to go in the opposite direction from their "Candy" pen and began focusing on producing a higher standard series, which is the 1911 series we see today. Their focus on making a higher standard provides a great foundation for their later series of pens. Today, Sailor makes one of the most diverse lines of nibs, some of which are designed for specific writing purposes such as writing musical notes to one that is best for character writing.

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