Rolli's 5218-210 Yellow Dial in Oem Quality and Standard made in switzerland like all our dials Swiss made materials. dial basic material is brass, welded unitas 6497-1 feet indexe cnc miliing polishing , and then fine glass bead blasting complete silver galvanic coating special yellow swiss berlac paint color analyzed, based on genuine picture, with a high end spectral analyzer. paint extreme matt mixed, then on top satin sheen zapon varnish. final thickness of the dial is 1,0 mm 1. indexe print , the berlac black glossy paint frames, 2.) indexe filling by rc tritec zwitzerland, The early tritium color was C3 pigment with resin varnish uv820, same here but in super luminova with super luminosity high grade-A, together mixed with high glossy resin varnish uv820, same with the preV hands. 3.) final lettering and minute marker print with berlac black glossy Note: the strap is a maori tatoo strap !!!!!!!!!! NOTE: some additional informations: the genuine 5218-210 has a PreA case and a preV caseback. same here !!! enjoy the pictures, for detail information please PM regards rolli