Angelus Chronodate
From Chronopedia
Angelus Chronodate / Angelus Chronodato / Angelus Chronodata Deluxe
The Chronodato, introduced in 1942, was the first chronograph to feature a calendar. These early features are now desirable to the chrono-collector.The date's displayed in a chapter ring on the outer edge of the dial, indicated by a red-tipped hand.
Deluxe or Chrono Datoluxe
Angelus followed the success of the Chronodato with the Chronodato Deluxe in 1948. The Chronodato Deluxe was the first chronograph to feature a big date complication, and also bore a moon-phase indicator.