1902
- The watch manufacturer Oris is founded as municipal watch factory in Hölstein (Switzerland) under the brand Lohner & Nägelin.
- Cartier openes a branch in London in 4 New Burlington Street and manufactures jewelry and objets d'art for the Royal Family.
- Patek Philippe applies a double chronograph for a patent.
- Dubois Dépraz, a specialist for complex cadratures, is founded in Le Lieu in the Vallée de Joux.
- Herman Aegler begins production of wrist watch movements.