Portal:Anniversaries/March 31

2009 — Tiffany Watch debuts at BaselWorld, a joint venture between the famous jeweller and Swatch Group.

2005 — Patek Philippe introduces the first complicated Nautilus model, the Nautilus Moon Phase, Ref. 3712. It would be produced for only one year and become one of the most desirable Nautilus models.

2005 — Seiko reveals their revolutionary Spring Drive technology in a special stand at Baselworld.