Jean-Marc Pontroué, the new boss at Roger Dubuis, talks about the brand's four "worlds" - the gambler, the warrior, the adventurer and the diva - and the corresponding collections that it will present at the next Salon International de la Haute Horlogerie.

Blancpain proved watchmaking still has ample room for superlatives when it presented the X Fathoms, its new dive watch and worthy successor to the legendary Fifty Fathoms. The launch took place among the 30,000 fish and 400 sharks in the world's biggest aquarium, the Dubai Aquarium & Underwater Zoo. Taking the plunge was Mark A. Hayek, CEO of Blancpain.

The precepts taught by the legendary school of arts and crafts, founded by Walter Gropius in 1919 in Weimar, continue to find expression in watchmaking, led by Germany's Stowa, Junghans and Nomos. Coming after tributes from Alain Silberstein and Zeno, Patek Philippe unveiled its Annual Calendar Regulator earlier this year.

A chronograph movement with column wheel, co-axial escapement, silicon balance spring and time-zone function joins the legendary Speedmaster range. A series-produced calibre finished to a remarkably high standard.

A new Opus by Harry Winston and a new concept by Denis Giguet: a watch that explodes the hour to reconstruct it a fraction of a second later. An apparent anarchy that never loses track of time.

After its Cape Cod Grandes Heures, Hermès returns with Arceau Le Temps suspendu, a watch that makes time our plaything.