Parmigiani Fleurier Tonda watches

The Parmigiani Fleurier Tonda, Italian for "round", takes in the brand's round-cased watches outside the Toric line. Its anchor is the Tonda 1950, the ultra-thin dress watch Parmigiani made in 2010 for Michel Parmigiani's 60th birthday, which carried the manufacture's first automatic movement with a micro-rotor. The Tonda PF, launched in September 2021 with the Tonda PF Micro-Rotor, is a later, separate collection.

That movement is calibre PF701: 30 mm across and 2.6 mm thick, with a platinum micro-rotor, beating at 21,600 vph with a 42-hour power reserve. It sits in a 39 mm gold case about 8 mm thick, with teardrop lugs, delta hands and a small seconds dial. The steel Tonda 1950 is a slightly larger 40 mm and uses calibre PF702 rather than the platinum-rotor PF701. Around that core the 1950 runs through titanium cases with meteorite dials, stone dials in lapis lazuli, malachite and tiger's eye, Sertie versions up to fully paved dials, an openworked Squelette, and a Tonda 1950 Tourbillon of 40.2 mm with jade, aventurine or mother-of-pearl dials, still under 9 mm thick.

The other Tonda lines take the round case in different directions. The Tonda Hemispheres is the 42 mm dual-time watch, in steel or gold, built on the single calibre Michel Parmigiani developed for two time zones; it appeared in the Tonda Hemispheres in 2010 and moved into the Toric in 2017. The Metrographe is the steel 40 mm model, on a bracelet or strap. The Metropolitaine is the small 33.1 mm steel watch, with or without diamonds, on a strap or a bracelet. The Quator and the Tonda 39 Qualité Fleurier stay in gold at 39 to 40 mm, while the Centum and the Tonda Tourbillon move up to 42 mm, the Tourbillon in rose gold or platinum.