The Montbrillant Datora pays tribute to the popular Breitling Datora watches from the 1940s. This chronograph and complete calendar features a unique way of displaying the date. Its self-winding movement showcases the day and month in two apertures, with a half-moon pointer for the date. Along with an aviation slide rule, tachometer, and 1/100th hour indicator, the watch also has a second hour display in 24-hour mode, or "military time." This timepiece is a true example of mechanical genius and pays homage to its iconic predecessor. Model number: R2133012.Q578.220R.