If the Grande & Petite Sonnerie pocket watch is considered the Himalaya of watchmaking and collecting, then in wristwatch format, we are probably reaching the zenith of the horological stratosphere.

The Grande Sonnerie complication allows the timepiece to automatically chime the hour on every hour and hours and quarters on every quarter, while in Petite Sonnerie mode, the watch will only chime the passing of the quarters.

The present Daniel Roth is more than a Grand & Petite Sonnerie; it also features a tourbillon visible through the caseback as well as two retrograde power reserves (for the movement and Sonnerie). The date at 6 o’clock, all on an elegant mother-of-pearl chapter ring and a superbly hand-engraved moonphase display at 12 o’clock.

The automatic movement is particularly noteworthy, making this model part of the exceedingly small series of automatic "Grande and Petite Sonnerie" watches ever made.

The present timepiece maintains all the elements collectors have come to love and covet: the signature ellipsocurve Roth signature case, the arrow hands and a return to the Clou de Paris guilloche dials.