Calibre 9909 MC is the first multiple time zone movement to feature in Cartier’s Fine Watchmaking Collection, housed in a Calibre de Cartier watch. The movement is entirely developed and produced within the Cartier Manufacture.
At SIHH today, Cartier presented a new version of the multiple time zone complication, which aims to provide:
– the home time with day/night indication, the traveler’s local time, adjustment for summer or daylight savings time and – something quite unique – the time difference between the two selected time zones, which some might call the jet lag display.
– excellent readability of all the functions in a limited space
– simple setting and checking of all functions and displays.
Home time is indicated on the lower dial in the center of the watch by a day/night hand featuring sun and moon symbols. Local time in the traveler’s location is shown by the main hands, which enable the second time zone to be read directly.
The self-winding Caliber 9909 MC differs from standard multiple time zone movements in that its cities disc is completely integrated into the movement and is visible in a lateral magnifier on the 9 o’clock side of the case, rather than on the dial. This clever mechanism avoids overloading the dial.
The time in each of the 24 reference cities is read by pressing the pivoting push-piece. Each press reveals a different city, its local time, and the time difference between the home time and the traveler’s time.
As a final innovation, the Calibre de Cartier multiple time zone watch takes the change to and from summer time into account, an important feature in several countries around the world. To achieve this, the reference scale on the cities disc simply needs to be altered for the five months during which summer time is in operation.
The Calibre de Cartier multiple time zone model is a robust 45mm in diameter. The design gives the piece a strong personality and the unmistakable Cartier aesthetic.
Technical information appears below the images, which may be enlarged with a click.
Calibre de Cartier multiple time zone watch, Calibre 9909 MC
Case: 18 carat white gold
Diameter: 45 mm
Crown: heptagonal in 18 carat gold, set with a faceted sapphire
Case back: sapphire crystal
Water-resistance: 30 metres / 100 feet / 3 bar
Upper dial: galvanic guilloché, slate-grey colour, silvered openwork grill with sunburst effect,
black transferred Roman numerals
Lower dial: silvered, with black transferred Arabic numerals
Hands: sword-shaped in blued steel
Day-night hands and multiple time zone hands: blued
Strap: black alligator skin
Clasp: double adjustable folding in 18 carat gold
Multiple time zone Calibre 9909 MC
Movement: Manufacture self-winding mechanical, Calibre 9909 MC, multiple time zone, cities
disc, day-night indication, time-difference display
Casing-up diameter: 11½ lines (25.58 mm)
Total diameter: 15½ lines (35.10 mm)
Thickness: 6.68 mm
Number of jewels: 27
Number of parts: 287
Balance: 28,800 vibrations/hour
Power reserve: approx. 48 hours
Individually numbered movement