Despite the fact that all phones have built-in clocks now, the ownership of a finely crafted wristwatch is an elegant statement of the fact that you’ve made your breakthrough on the fashion scene and have, in fact, arrived.

Of all the complicated skills a watchmaker has to learn to perfection, constructing the perpetual calendar is the most difficult. A timepiece has to be pre-programmed to correctly display the date for over a century, odd days in February and leap years accounted for. This requires precision engineering at its best and is no mean feat.

Swiss watchmaker Audemars Piguet, established in 1875, is among the most respected names in the time-keeping industry. High-end brands like Tiffany & Co., Cartier and Bulgari all use movements by AP.

Audemars Piguet’s new Royal Oak perpetual calendar wristwatch is a masterpiece in this respect – needing not a single date adjustment for a 125 years and 317 days, meaning it’ll still be working perfectly on your grandson’s wrist!

In its famous Gerard Genta-inspired octagonal case, the 41mm Royal Oak functions on an extra-thin automatic movement. Going for the dress-watch exterior, Audemars Piguet have fitted their latest product with five discreetly placed pushers that sit flush with the case.

The wristwatch models spoil you for choice, each so tempting that you’ll find it difficult to make a decision. Available in four variations, you can choose from two steel and two rose-gold models.