High polish of gold

Hello,

I have cause to polish 18k red and yellow gold on fine wrist
watches.

Using red rouge and a soft buffer I can get a reasonable finish but
since the rouge is around 3 micron grit it leaves fine scratches that
are very noticeable in sun light.

Can some one suggest another rouge that may have a finer grit?
Something around 1 to 1/2 micron? Any other product that can be
applied to a buffing wheel?

I have tried Flitz but it leaves fine scratches also.

Thanks in advance.
larry