water spots with satin black

i got a satin black paint job on my 58 caddy and i got some water spots on it...i tried washing them off...anyone got any secrets for the satin black...i dont wanna put something on it thats gonna make it shiny...i hate water spots.

 

Wipe the car down with a Chamois or 100% cotton towel when you're done washing it. Or you could leave it out in the rain...that will dissolve the water spots (calcium/magnesium hard water deposits)

 

Use Windex. Spray on and wipe with a soft rag until moisture is gone. Works on mine.