Parmigiani Tonda Metropolitaine Sélène Rose Gold

The PF318 movement and its moon phase module is the 33rd movement created within the Parmigiani Fleurier manufactures. The moon phase’s operating principle is based on a gear moved by the hour wheel, which rotates at half the speed of the gear. The gear drives the moon disc every 24 hours via a flexible blade integrated in the centre of its wheel. A corrector at 9 o’clock enables the wearer to independently index the moon in relation to the day and date in order to match its phase to the geographic reference location.
The PF318 self-winding movement has a power reserve of 50 hours and excellent isochronism thanks to its two series-mounted barrels that regulate the rate. Visible through the watch’s sapphire case back, this calibre is entirely circular-grained, decorated with Côtes de Genève and bevelled to the finest haute horlogerie standards customarily applied in the Parmigiani Fleurier manufacture.