..or logos, your hints are tough nuts to crack, my guess are multiple, let me know if my multiple guess are correct...errr.....i am guessing Corum (but Corum symbol is a key not a crown) or maybe Glycine, Montblancs.. i seriously cannot guess. Can you give more hints pls. Thx
Your hint of saying it involves a crown, most watches have crowns except for a few...