Revel in some of Japan’s traditional celebrations with the Seasonal Festival Series by Sailor. Each fountain pen in this series was designed in honor of one of the five seasonal festivals that take place in Japan each year. Koi, a deep gray blue with sparkle, represents the Tango Festival that celebrates the good health and growth of boys.
The Sailor Pro Gear Slim fountain pen is equipped with a 14k gold nib in fine, medium fine, or medium. The cap screws to open/close and can push to post onto the back of the barrel when writing. Each pen comes with a proprietary Sailor converter.
You can choose to upgrade to a gift set, which is carefully packaged to include a matching 20ml bottle of Sailor Shikiori Shimoyo ink.
Click here to shop all compatible Sailor ink cartridges.
Note: Sailor is in the process of updating their nib and finial designs; our stock is currently mixed and what you receive may or may not match what is pictured. We are unable to honor special requests.
- Fountain Pens
Whether or not the barrel of the pen is translucent, allowing you to see the ink and filling mechanism inside.
- Body Material
- Cap Rotations
For pens with a screw-cap closure, how many rotations it takes to uncap/recap the pen.
- 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).
- Compatible inks & refills
Which ink this pen will accept. Choices include bottled ink and various styles of pre-filled ink cartridges.
- Bottled inks, Proprietary Sailor 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
- Nib Size
- Fine, Medium Fine, Medium
- Nib Color
- Nib Material
- 14k Gold
Whether or not the cap fits securely onto the back of the barrel when open.
Whether or not the nib/tip can retract into the body of the pen (usually for click or twist-open style pens).
- Diameter - Body
- 12mm (0.47in)
- Diameter - Cap (without clip)
- 14.6mm (0.57in)
- Diameter - Cap (with clip)
- 17.2mm (0.68in)
- Diameter - Grip (mm)
Measured from the place most people choose to rest their fingers, which varies with each pen.
- Length - Body
The measurement from the back end of the barrel to the tip of the nib.
- 109.7mm (4.32in)
- Length - Cap
- 59.8mm (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.
- 19.2mm (0.76in)
- Length - Overall (Closed)
- 123.3mm (4.85in)
- 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.
- 142.1mm (5.59in)
- Weight - Body
If a converter is included with the pen, this weight is reflected in the total.
- 10g (0.35oz)
- Weight - Cap
- 8g (0.28oz)
- Weight - Overall (g)
- Max Ink Capacity - Cartridge
The maximum volume of ink that can fit in the pen when using a cartridge.
- Max Ink Capacity - Converter
The maximum volume of ink that can fit in the pen when using a converter.
Reviews & Questions
How do I fill a fountain pen with ink?
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!
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.
You can learn more with our Fountain Pen 101 video on Filling Mechanisms on YouTube.
How do I clean a fountain pen?
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?
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?
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!
Sailor Pro Gear Slim Fountain Pen - Koi (Limited Production)
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