Breguet Classique Tourbillon Sidéral 7255

Breguet's Classique Tourbillon Sidéral 7255, reference 7255BH/2Y/9VU, has a rose gold case measuring 38 mm across. The case stands 10.2 mm thick, with lugs set 20 mm apart. A sapphire crystal covers the blue aventurine dial, and the manual-winding calibre 187M1 drives the display back, visible through a sapphire case back. This movement offers 50 hours of power reserve and carries a flying tourbillon at its centre, along with a central seconds function. The tourbillon cage occupies the dial's lower register, a Breguet specialty since Abraham-Louis Breguet devised the complication in 1801. An alligator leather strap closes with a rose gold folding clasp. Water resistance is modest at 30 metres, enough for accidental splashes but not for submersion.