Portal:Anniversaries/May 26

1923 — The first 24 Hours of Le Mans race begins. This would become a key advertising opportunity for many watch companies, notably Rolex.

1983 — Details of the merger between ASUAG and SSIH are announced at a press conference, representing a key moment in the consolidation of the Swiss watch industry as the SMH/Swatch Group is formed.

2016 — Citizen Holdings of Japan acquires Swiss company Frederique Constant and their historic brand, Alpina.