The Breguet Classique Hora Mundi ref. 5727 case with comes to classical design, a watch easy to use world timer in terms of functionality and one of our all time favorites.
This time, instead of featuring a highly elaborated engraving representing land masses of the Americas, the European and African continents, or Asia and Oceania with a total of six different references, the dial features a chapter ring with Arabic numerals, Breguet secret signatures between 11 and 1 o’clock, blued open-tipped hands, day night indicator at 3 o’clock and the usual apertures at 12 and 6 o’clock in order to check the time across 24 different cites.
While the center of the dial features ‘Clous de Paris’, the subdial at 3 o’clock —that serves as a day/night indicator— is recessed and features two very intricate types of guilloché. While the previous iteration of the Hora Mundi ref. 5717 featured at moon phase indicator at 3 o’clock, we feel that the day/night indicator on the new Hora Mundi ref. 5727 is a more useful complication when it comes to world timers.
Still powered by the automatic Breguet calibre 77F0 composed of the base Calibre 777 with an additional plate, this movement features 39 jewels, inverted in-line Swiss lever escapement with silicon pallets and balance-spring also in silicon. The movement provides a power reserve of 55 hours when fully wound while beating at a frequency of 4hz —28,800 vph. 
The watch is sold with a matte dark brown alligator leather strap. On the wrist, the watch wears slightly smaller than its actual size if you have a 7.25″ wrist. The wrist presence is definitely very elegant make this timepiece one that is better when paired with a dressier attire.
