Cartier's 'Tonneau' model was first introduced in 1906 and has now been revived with a few modern-day updates. The sleek open-worked 18-karat rose gold case is fitted with two curved skeletonised dials showing dual timezones, making it a great tool for frequent flyers. The in-house 9919 MC-calibre movement that powers both can be seen through the exhibition case back – though each is individually hand-wound using the angled blue sapphire-topped crowns. It may be titled as 'XL', but it's still a relatively slim and non-invasive timepiece, sitting at just 29.8mm in diameter with a narrow dark-grey alligator strap.

We offer a two-year warranty for all working parts and manufacturing faults for luxury watches. For more information, contact one of our experts by emailing watches@mrporter.com