Found this grey striped Watermans lever fill fountain pen at a local flea mart for under $15. I am having a hard time figuring out the model of the pen. The pen says Watermans made in USA and has some Chinese/ Japanese characters below it. The clip also has the same characters and the clip shape is a similar shape to a Parker arrow one. The nib says 502 and other Chinese/ Japanese characters on it. (See Pictures)
Any help on this pen or any information would be awesome.