The Octa Quantime Perptuel represents an innovative and thoughtful approach to the long-established complication by . First announced in 2012, the Quantime Perptuel builds on the watchmakers existing 1300.3 calibre (supporting several complications within the Octa line), as the basis for his second perpetual calendar, which was finally released in 2015.

This example, is one of few pieces from the Black Label series, created exclusively for existing F. P Journe clients. Only twelvepieces are received by theboutiques in any year, with just two pieces for each model in the collection.

In the design, Monsieur Journe used familiar pieces from the Chronomtre Souverain and Octa Calendrier. Like the , the outer track of the Quantime Perptuel holds the embossed decorative Arabic numerals, though with the power-reserved indicator located at 9 oclock. Borrowing from the Calendrier, the Quantime Perptuel indicates the day and month in two concise windows, further adding the date display within two additional oversized windows at 6 oclock, replacing the Octa Calendriers distinctive long arc for the date, present in Journes first perpetual calendar, the Octa Perpetuelle. The Quantime Perptuel is one of the first of a generation of central dials, distinguished by apolished steel ring securing the centreof the dial.

This self-winding, Calibre 1300.3 is rhodium-plated brass, with straight Ctes de Genve embellishments, constructed with a shock absorber mechanism. It further features a straight-line lever escapement, and monometallic 4-arm balance with 4 timing weights, adjusted to 5 positions. It includes a self-compensating free-sprung flat balance spring, and an off-centre bi-directional 22-carat gold guilloche rotor.

Sized at 40mm, this Black Label Quantime Perptuel features a rounded bezel, thin lugs and the manufactures' oversized flat crown with a rope-like pattern. The entire watch is polished and mirror finished, while the crown itself is engraved. All the calendar functions are adjusted using the crown, with exception to the months (and leap year), which are advanced using a corrector concealed underneath the 1 oclock lug. The mechanism allows for simultaneous correction of the day and date in one direction, separating it from the isolated rotation of the day in the opposite direction, once the second position of the winding stem is engaged. TheQuantime Perptuel is an instantaneous perpetual calendar, with all calendar displays jumping simultaneously, in a flash, at midnight.

This F.P. Journe Octa Quantime Perptuelcomes as a full-set, with an original F.P Journe, black alligator strap,corresponding platinum tangbuckle, its accompanying box and theBlack Labelcertificate.

Viewings can be arranged in Central London by appointment.

Closer look