Guests will journey onboard Silversea’s Silver Dawn for the global sailing, marking the first time a Muse-class ship has hosted a World Cruise.
The cruise will incorporate 33 overnight calls, seven events, three optional overland programmes and 19 maiden calls.
From 13 January to 27 January, Silver Dawn will sail from Tokyo to Hong Kong and on to Singapore on 7 February before stopping in Mumbai on 24 February.
It will then voyage to Istanbul on 16 March, Naples on 25 March, Lisbon on 3 April and Southampton nine days later before heading to Stockholm on 30 April, then traversing to Reykjavik on 13 May ahead of a final transatlantic crossing arriving in New York on 29 May.
Roberto Martinoli, president and chief executive of Silversea Cruises, said: "Feeding the incredibly high demand for extended voyages, our destination experts have designed our new Controtempo World Cruise 2025 to sail offbeat, enabling the world’s most experienced travellers to rediscover the world in a whole new light."