Rolex’s Certified Pre-Owned programme is turning authentication, servicing, and provenance into part of the luxury product itself. As auction houses combine watches, handbags, jewellery, wine, and other collectibles under one retail system, trust is becoming one of the sector’s most valuable forms of craftsmanship.

Luxury's signal keeps moving. It moves because anything a stranger can read, a stranger can copy.

In a flat year for luxury, one watchmaker's index rose nearly three times as fast as its larger rival's. The difference was not quality. It was refusal.