Freshly re-inked: My Super5 fountain pen in green (Dublin) is now part of my current pen rotation. The other two currently inked pens include the Lamy 2000 with an EF nib and the re-release of the Parker 51 in Teal with an F nib.
Since it’s made in Japan Kaco is from China I assumed it was bought in and suspected that this ‘shape’ of multipen is also being used by other brands.
I have now found another pen that is presumably from the same OEM: The Stálogy multipen. The clip looks different and I assume the refills are different. The KacoGreen refills are stamped “Kaco”, so I assume Kaco is using their own refills in a bought-in body.
OEM products are fairly common in the stationery industry. For sharpeners OEM products are used by many brands. When it comes to OEM fountain pens I noticed some with similar looks but massively different quality.