Classique « Grande Complication » openworked wristwatch in platinum, with tourbillon. Hand-wound movement in pink gold engraved by hand. Perpetual calendar showing the day, date, month and leap years. Small seconds on the tourbillon shaft. Compensating balance-spring with Breguet overcoil. Water-resistant.
The tourbillon, A.-L. Breguet's historic invention patented in 1801, was conceived to compensate for rate errors resulting from the effect of gravity on the moving parts.
The straight-line perpetual calendar, patented in 1997, enables for the first time the display of perpetual calendar indications on a single line, as well as an instantaneous year jump.
|Calibre :||558 QPSQ|
|Case thickness (mm) :||10.25|
|Case dimension (mm) H :||39.00|
|Water (m) :||30|
|Powers (hours) :||50|