Portal:Anniversaries/April 15
- Annually — Mean time and solar time match
- 1861 — Junghans is founded
- 1961 — Bulova previews the Accutron at the Basel Fair.
- 1972 — The Audemars Piguet Royal Oak debuts at the Swiss Watch Fair.
- 1991 — The first-ever SIHH show opens in Geneva.
- 1996 — North American Watch changes their name to Movado Group, which then included the brands, Concord, Movado, and Esquire/ESQ and American distribution of Piaget and Corum.