Le Reveil du Tsar Reference 5707, A Yellow Gold Dual-Time Automatic Watch with Alarm, Date, 24-Hour Indication and 30-Seocnd Retrograde Seconds, Circa 2018

With the Réveil du Tsar, launched in 2003, Breguet introduced two new patents through their new caliber 519F: the first for the column-wheel mechanism that locks or activates the alarm, the second one for the device that co-ordinates the alarm with the local time. This elegant and complicated masterpiece takes its name from Tsar Alexander I of Russia, among the ranks of esteemed and honorable Breguet collectors.