The 55,200gt all-balcony-suite ship can carry up to 750 passengers.
Features include an opulent 3,875-square-foot Regent Suite, extravagant lounges and several gourmet restaurants.
The ship is registered in the Marshall Islands and the classification society is Bureau Veritas.
Seven Seas Explorer is scheduled to be named by Princess Charlene of Monaco during evening festivities July 13 in Monte Carlo. The maiden voyage is set for July 20.
Regent has contracted a sister ship for delivery in 2020.
Including Seven Seas Explorer, Fincantieri has built 74 cruise ships since 1990. Twenty-one others are currently being designed or constructed in the group’s yards.