Antiquorum is pleased to present the first model of Girard-Perregaux Opera trilogy: an exceptionally rare white goldminute-repeating carillon wristwatch with tourbillon, marked ‘Numero 1’.» The manually wound calibre 9899 with 75-hour power reserve activates the Westminster chime via a caseband slide.
The four hammers, visible through open dial apertures and marked with the notes Sol–Do–Ré–Mi, strike the gongs to
reproduce the melody of London’s Houses of Parliament. This rare four-gong carillon configuration is found on only a
handful of wristwatches.
Named Swiss Watch of the Year by Montres Passion in 1999 and awarded the Special Jury Prize by the Federation of the
Swiss Watch Industry, the Opera One was produced in extremely limited numbers. While other examples (Case Nos. 6, 9,
16, 17 and a platinum piece unique) have appeared at auction with champagne or skeletonised dials, the present white gold
example with its solid blue dial remains the only known piece of this configuration.