What does rarity really mean? In this one-minute masterclass brought to you by Luxury Group by Marriott International, Sotheby’s Carl Chen explores the nuances of what makes a watch truly stand apart from the rest. Watch to find out the three key factors every collector should know. Luxury Week at #SothebysHongKong kicks off on 11 September, presented in partnership with @LuxuryGroup.Official. Register to bid and learn about masterclasses at the link in our bio. @stregishk @ritzcarltonhongkong @stregisshenzhenbaoan @toranomonedition