Schwarz Etienne Roma Geometry Silver (WROGEOMA14SSVEBCLTD)

The Geometry takes the Roma dial apart and puts it back together in four quadrants, each given a different treatment: fluted lines, azuré, clous de Paris and a finely sandblasted minute track, with the small seconds recessed at six. The dial is 18ct gold and the guilloché is worked by hand, so no two quadrants meet without a change of texture. The design is Eric Giroud's.

Here the gold is finished in a rhodium silver, the logo and minute track picked out in black and the small seconds sandblasted in dark blue. The case is stainless steel, 39mm across and 11mm deep, under domed anti-reflective sapphire and water resistant to fifty metres. Behind it runs the ASE 200.02, an automatic of 198 parts with its micro-rotor set level with the bridges so the finishing stays in view. The power reserve is eighty-six hours. On a dark blue leather strap with a brown lining and a stainless steel triple folding buckle. Limited to one hundred pieces.