I had a similar situation with my date at "6" Seamaster. You may have an issue even if Cousins has the correct pink gold crown, as the shades of gold used in the modern pieces sometimes doesn't match the older gold on the bezel.
Check with your watchmaker or jeweler. He may know someone who can "dip" the crown to make it pink gold. I had this done and it matches perfectly.
Before:
After:
Yes, I had new hands installed at the same time. These were dipped as well.
Good luck,
gatorcpa
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