Chopard has a high-watch division and a luxury jewellery division. The L.U.C line and Alpine Eagle sit closer to the high-watch side; Happy Sport sits closer to jewellery. Mille Miglia somewhere in between. That structural reality shapes the pre-owned market more than any other variable. The buyer for a L.U.C...

Bvlgari watches sit in a strange in-between. Italian design from Rome, Swiss manufacture from Neuchâtel, and a brand identity that splits cleanly between watch collectors who care about the Octo Finissimo and jewellery buyers who shop the Serpenti line. The two groups don't usually overlap. For anyone planning to sell...

Jaeger-LeCoultre supplies movements to half the haute horlogerie industry. Patek, AP, Vacheron, IWC, and Cartier have all used JLC-made calibres at various points. That's worth knowing because the pre-owned JLC market doesn't really reflect that pedigree in pricing. Buyers know about the manufacture credentials, dealers know about them, but the...