SK4 Ink used in Seiko 510 1.For Seiko SPT-1030/510/255- ... ,K,Lc,Lm 6colors; 3.Sunproof about 18 month SK4 Ink used in Seiko 5101.Suitable Printers:All of equiped Seiko SPT ... :» 6 colors, Cyan,Magenta,Yellow,Black,Light Cyan,Light Magenta; » Used best pigments for gorgeous color in full saturation; » Real long ...