I don't have a Merkur Vision, but I would think a new razor wouldn't need more than a little soap and water, and as bogbrush said, be sure and wipe it dry with a towel.
scrubbing bubbles with a toothbrush, dry it off with a towel, then polish it with some Flitz. Always remember to dry off the shiny parts with a towel after a shave to avoid hard water spots.