Something rare happened at Watches and Wonders: nearly all the exhibitors agreed on one thing—downsizing case diameters is no longer just a choice, it's a given. But why? For whom? And how exactly?

Geneva, early April. In the plush halls of Watches and Wonders, and even in the discreet lounges of boutique hotels, the world of watchmaking was dazzling and diverse. From micro-diameters to ...