Breguet 5317BA /12 /9V6 Tourbillon

Breguet Classique “Grande Complication” wristwatch in 18-carat yellow gold, with tourbillon. Self-winding movement engraved by hand.
5-day power-reserve indicator.
Running seconds on the tourbillon shaft.
Compensating balance spring with Breguet overcoil.
Silvered gold dial, hand-engraved on a rose engine.
Sapphire caseback.
Also in pink gold or platinum.