The Platinum Curidas is a retractable fountain pen that looks to be related to the Platinum Preppy. It was first announced in 2020 with limited details.
The Curidas is a retractable fountain pen, similar to the Pilot Vanishing Point or Lamy Dialog 3. Like those pens it has a clip near the writing tip, so it can be placed in a pouch or pocket nib-size up. The Curidas has a steel nib and a removable steel clip. The clip can be removed with an included plastic tool which helps you slide it off the body.
The final pricing of this pen is not yet known, but early models are selling on marketplaces like Rakuten for about $60. This is a high price for a fully plastic pen, and it’s more than the price of Platinum’s PTL-5000 gold nib pen. The MSRP does seem to be 7000 JPY, so the $60 price is on target, but it should fall a bit over time.
The name “Curidas” is a neologism which combines the English word “curiosity” and the Japanese word “kuridasu,” which means to let out. This is the word used for the knocking action of a pen — letting out the tip.
One interesting thing about the pen is how long the top button is. This give the pen a rather odd look and certainly limited the “cool factor” relatively to something like the sleek Dialog 3 or a standard capped fountain pen. One reason the push action is so long is that Curidas has a shutter that opens and closes to keep the nib from drying out. This action is an added complication
The Curidas will work with Platinum’s cartridges, the Platinum converter 500, or the Converter 700. The converters are sold separately.
The pen is has a plastic exterior, which looks quite like that of the new Prefounte pen, but there is metal hardware on the inside. This should ensure that the mechanism for pushing the nib in and out works for the life of the pen. There is a rather large spring inside, similar in size to that on the Twsbi Go, that is doing the retracting work.
Like the Pilot Vanishing Point, the nib unit (from the nib and feed all the way back to the button) are completely removable from the pen’s body. This can be done by twisting a tab on the inside of the pen. This would be useful for cleaning the nib or replacing the converter.
Platinum Curidas Retractable Fountain Pen Information
|Street Price||Check Price|
|Pen Type||Fountain Pen | Cartridge/Converter|
|Barrel Color||Clear, Black, Green, Blue, Red|
|Body Diameter (mm)||13.8|
|Grip Color||Clear, Black, Green, Blue, Red|
|Country of Origin||Japan|
|Capped? Retractable?||Retractable - Top Button|
|Clip?||Metal - Removable|
|Length Capped / Retracted (cm)||15.3|
|Nib Material||Stainless Steel|
|Nib Sizes||Extra Fine, Fine, Medium|