HM6 Space Pirate. Set in grade-5 titanium, five sapphire crystal domes display a three dimensional horological engine, and the 60-second central flying tourbillon has a retractable shield, while the rear has a sapphire crystal window into the mechanism within. Handstitched calfskin strap with titanium custom-designed folding buckle. Limited to 50 pieces. www.mbandf.com
Jacob & Co.
Astronomia Tourbillon Baguette, 50mm 18k rose-gold case with unique domed sapphire crystal, a 288-facet spherical diamond (1ct) rotating in 60 seconds on 2 axes and a hand-painted titanium globe. Gravitational Orbital Tourbillon system. Alligator strap, 18k rose-gold folding buckle. Unique piece. www.jacobandco.com
The Grandmaster Chime. This 47.4mm 175th-anniversary watch is the first doublefaced piece for the Swiss brand. Fully hand engraved with a decoration of laurel leaves, manually wound mechanical movement houses no fewer than 20 complications: the most complex piece this brand has ever produced. Limited to seven pieces. US$2.6 million www.patek.com
Big Bang Unico Haute Joaillerie, to celebrate 10 years of the Big Bang design. With 45mm white-gold case featuring 653 white baguette diamonds (40.12cts) and semi-matte black alligator strap. Ten unique versions of this model will be produced in a US$10 million collection. One-of-a-kind piece. US$1 million www.hublot.com