Compared to its predecessor (the 2011 Tonda Quator) the Tonda 1950 Annual Calendar is notable for its understatement. The designers have enlarged the bezel to reveal as much of the dial as possible. The minute track and indices sit on the outside, producing a floating effect to improve time reading. The numerals on the retrograde date are arranged on the inside, encompassing the day and month counters. The dial is constructed in several levels in a three-dimensional arrangement. The hands are slimmer and more elongated than previously, although their proportions are in line with the golden ratio preferred Michel Parmigiani.
The Parmigiani Fleurier Tonda Annual Calendar is available in two versions: a rose gold case with a white-grained dial – a speciality of the manufacture–and a white gold case with a black opaline dial. Inside is Caliber PF339. With the PF331 automatic movement as a base, Parmigiani Fleurier developed the new caliber, equipped with an additional module dedicated to the Retrograde Annual Calendar and its precision moon phase. Price: $29,600
MOVEMENT: Caliber PF339, self-winding, 50-hours power reserve, two series-coupled barrels, Frequency: 4 Hz (28,800 Vib/h)
FUNCTIONS: Hours, minutes, seconds, annual calendar, retrograde date, precision moon phase
CASE: 40mm rose gold, or white gold, Sapphire back and front,
DIAL: White or black, grained or opaline finish with rose gold indexes with luminescent coating
STRAP: Black alligator by Hermès with matching gold folding buckle.