Breguet Classique 5177BB/2Y/9V6

Case in 18k gold with a finely fluted caseband. Sapphire crystal caseback. 38mm diameter. Dial in “Grand Feu” blue enamal. Chapter ring with Breguet numerals. Centre seconds and date aperture at 3 o`clock. Breguet open-tripped hands in rhodium-plated steel. Mechanical self-winding movement, Cal. 777Q. 55-houer power reserve. In-line Swiss lever escapement in silicon. Frequency 4Hz. Silicon balance spring.