Geneva, Switzerland CNN  —  As the world’s biggest luxury watch manufacturers gather beneath one sprawling roof at the annual Watches and Wonders trade show in Geneva this week, anniversaries are being celebrated all around. One of Switzerland’s longest-running horologists, Vacheron Constantin, marks its 270th birthday with the most “complicated” wristwatch ever made. Featuring a record-breaking 41 complications (functions that go beyond basic time-telling), the Solaria somehow packs a