With F.P. Journe Certificat d’Authenticité dated 13 December 2006, fitted presentation box and outer packaging.
The Chronomètre Souverain is inspired by early 19th century marine chronometry. Fitted with an ultra slim manually wound 18K pink gold movement of only 3.7 mm that beats to a frequency of 21,600 alt/hour, the present watch is elegant and highly technical. In addition to the slimness of the movement, the two barrels, supplying a power reserve of 56 hours, operate in parallel to provide a constant force for unequalled precision.