Case
Tonneau-shaped case, curved in two axes, with finely fluted caseband
Material: 18 carat Rose Gold or 950 Platinum
Rounded horns stamped to the case with screw-pins to secure the strap
Sapphire-crystal caseback
Water-resistant to 30 metres
Dial
18-carat silvered gold hand-engraved on a rose-engine and curved in two axes
Individually numbered and signed Breguet
Chapter-ring in Roman numerals cut-out in one piece and applied on the dial
Open-tipped Breguet hands in blued-steel
Small-second on the tourbillon carriage at 6 o’clock
The “tourbillon-barrette” is shaped to serve as index number 6
Movement
Caliber 187H
Hand-wound mechanical movement with tourbillon
Individually numbered and signed Breguet
21 jewels
Power-reserve: 50 hours
Lever escapement on the side
2.5 Hz balance-wheel with load-screws
Breguet overcoil
Adjusted in 6 positions