Breguet Classique Tourbillon 5317

Breguet's Classique Tourbillon 5317, reference 5317BR/12/9V6, has a 39 mm rose gold case. The case measures 11.2 mm thick, with 20 mm lugs, and a sapphire crystal covers the dial and doubles as a display back. The self-winding calibre 587 DR drives the movement, carrying a tourbillon at six o'clock and a 120-hour power reserve shown at twelve. The silver dial is hand-guilloché, worked with a Clous de Paris pattern, and small seconds appear within the tourbillon aperture. An alligator leather strap closes with a rose gold folding clasp. The case holds a 30 metre water resistance rating, modest given the piece is built for the wrist rather than the water.