Breguet 5377 Extra-thin Self-winding Tourbillon.
Classique "Grande Complication" wristwatch in 18-carat rose gold.
Extra-thin 3mm self-winding movement, calibre 581DR, 16 lines, 42 jewels.
Tourbillon in a titanium carriage. Inverted lateral lever escapement in silicon and non-magnetic steel. Silicon balance spring.
Frequency 4Hz. Barrel mounted on roller bearings.
Peripheral platinum rotor. 80-hour power reserve.
Small seconds on the tourbillon axis. Ultra-thin 7mm case in 18-carat rose gold (also available in 950 platinum).
Silvered gold dial adorned with four different engine-turned patterns executed by hand: clou de Paris hobnail, barleycorn, straight chevrons and cross hatching.
Sapphire caseback.
Water-resistant to 3 bar (30m).
Diameter: 42mm