Toric Hemispheres RetrogradeReference# PFC493-0001400-XA1442
- Case: stainless steel
- Size: 42.8mm
- Movement: automatic winding manufacture caliber PF317
- Function: date, second time zone, day/night
- Power Reserve: approximately 50 hours
- Water Resistance: 30m
- Dial: black opalin
- Caseback: sapphire crystal
- Hands: luminous, javelin-shaped
- Strap/Bracelet: alligator leather by Hermès
- Factory Warranty: three years
The Toric Hemispheres Retrograde is the ultimate traveler’s timepiece. With its two time zones, it allows any two locations to be paired, correct to the nearest minute. It even allows those locations with a half-hour or quarter-hour difference to be paired with full hour times set from the Greenwich Meridian. Following the success of the Toric Hémisphères Rétrograde at the Grand Prix d’Horlogerie de Genève 2017 (where the watch won first prize in the “Travel Time” category), Parmigiani Fleurier is presenting a new version of the model with a black opaline dial.
It was a restored piece that inspired Parmigiani Fleurier to add the GMT complication to its collection. Parmigiani Fleurier’s restoration workshops had been entrusted with a pocket watch containing two movements inside one case, each responsible for its own time zone. This sparked a desire to create a timepiece that incorporated the same accuracy of display in the reduced space of a watch case too small to house two separate movements. Michel Parmigiani found an elegant solution to this limitation by constructing a single caliber that controls two time zones, each accurate to the nearest minute. The Tonda Hémisphères released by Parmigiani Fleurier in 2010 was a world first. In 2017, the brand is extending this exceptional movement to the Toric collection, its founding model, to add a dimension of travel to its elegant and timeless aesthetics.
The Toric Hémisphères Rétrograde has two time zones, each accurate to the nearest minute. A module is indexed to the main movement in order to govern the second time zone. By pulling out the small crown at 2 o’clock, the module is disengaged from the movement, meaning that the second time zone can be adjusted independently, to the nearest minute. When the crown is pressed back in, the movement and the module re-engage and the second time zone is re-indexed to the first so that they operate simultaneously with the desired interval. The main crown at 4 o’clock is used to wind the movement and set the time of the two paired time zones, and the date. Each of the time zones is associated with a window, which provides the day/night indication so that the time of day can be read in an instant for each time zone.
The caliber PF317 also features an instant retrograde calendar, indicated by the third central hand. As it moves towards the last days of the month, the hand activates a spring which drives it back to number 1 with great force. This 240° movement is so fast that it cannot be seen with the naked eye.
This self-winding movement has a double series-mounted barrel for improved isochronism and rate regularity, with a power reserve of 50 hours.