WITH a value of $1.9 million, the limited edition Il Destrieo Scafusia wristwatch, is one timepiece that will take many years before it is dated. In fact, the correct year will be shown on the watch - billed as among the most exclusive in the world - until 2499, so it is bound to outlast a good few generations of owners. Handmade by the International Watch Company (IWC), only 24 a year come out of the factory so intricate is the design (which includes 76 rubies and 21 complex functions). The Destrieo is at the top end of new Swiss watches released this year. Also boasting long-life calendars is the new collection of mechanical Omega watches from Omtis - which indicate day, month, year and moon phases - and encased in 21 karat gold. A little more reasonably priced is the Omega Speedmaster which was designed to meet the challenge of space and was selected in 1965 by NASA to be used in its programmes. It costs up to $290,000. Further down the Omtis range, and suited to the more fashion conscious, is the Tissot. The new Tissot SwissPack guarantees scratch resistance and water resistance to a depth of 100 metres. But unlike the more exclusive and expensive brands, the SwissPack is not perpetual.