Comparing the two fragrances…

Cuba

Otto Kern
Authentic Bold
Ultimate Black
Shared character
Both Authentic Bold and Ultimate Black feature a combination of amber, cinnamon, tonka bean, lavender, and sage.
How they differ
Authentic Bold includes lemon, pepper, vanilla, musk, patchouli, apple, iris, and marine notes, which contribute citrus, gourmand, spicy, powdery, and synthetic accords. Ultimate Black contains cedarwood, pink pepper, and nagarmotha.
Who each suits
Authentic Bold is suited for those who prefer scents with citrus, gourmand, spicy, powdery, and synthetic qualities. Ultimate Black is suited for those who prefer the specific combination of its constituent notes.
More Authentic Bold comparisons
Only in Ultimate Black