The first watch that doesn't require adjusting throughout its lifetime, this concept piece from Cartier uses breakthrough materials (carbon crystal and Zérodur) and technologies to protect the regulating components and keep them impervious to thermal variations and magnetic fields.

Kambys

Featuring a 100 per cent in-house manufacture movement, the limited-edition Kambys features manual double-barrel winding and a seven-day power reserve. The unique piece also has a secret animation activated by pressing the crown at 9 o'clock.

PANERAI
Pocket Watch Tourbillon GMT Ceramica

Paying tribute to Officine Panerai's history, this highly technical pocket watch - the first from the brand - features the P.2005/S hand-wound movement with tourbillon regulator. The skeletonised dial reveals the movement's three spring barrels and characteristic tourbillon cage.

Opus XIII

Defying the conventional rules of watchmaking, the latest Opus has 59 pivoting minute hands, 11 rotating triangles for the hours and a sliding trapdoor where minutes and hours appear or vanish instantly. It also has 242 ruby bearings, more functional jewels than any other timepiece.

Excalibur Quatuor

Recently launched in a full titanium black DLC interpretation, this groundbreaking model has four sprung balances - to immediately compensate for rate variations caused by the wearer's motions - five differentials and a power-reserve mechanism featuring a double 180-degree display.