Best microfiber cloth for cleaning acrylic watch crystals?

[RickFlorida]

Does anyone know what the best microfiber cloth is for acrylic watch crystals?   I once got a watchmaker to say they use a "special one that they wash and dry without fabric softener".   But I couldn't get them to say what brand.   

I'm still striving to find a way to make an acrylic crystal sparkling clean.  I'm guessing there are multiple premium microfiber cloths that are OK to use.  I see one on Esslinger.com that is probably fine but does anyone have experience getting an acrylic crystal absolutely shiny clean?

 

Thanks,

[Nanuq]

I put a little dab of toothpaste on my thumb and rub the hell out of it, then wash it off under running water.  It's a mild abrasive polish and works great.