ROTONDE PERPETUAL CALENDAR CHRONOGRAPH
Cartier Rotonde perpetual calendar chronograph
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CARTIER - ROTONDE PERPETUAL CALENDAR CHRONOGRAPH
The Cartier Rotonde perpetual calendar chronograph combines the measurement and display of short periods of time with a mechanism whose gears possess the ability to compensate for the irregularities of the Gregorian calendar.
With a 42 mm case and an alligator skin strap are entirely in tune with the expectations, and fitted with two 100% Cartier complications that are among the most highly appreciated in the marketplace.
The first is the perpetual calendar that continuously indicates long periods of time; the second is a new column-wheel chronograph calibre that, measures much shorter periods, such as brief events, with great precision.
At its heart is a wheel that completes one revolution every four years, with 48 indentations of varying depths on its circumference that indicate, via a feeler, whether the current month comprises 30, 31, 28 or 29 days.
The module also incorporates a retrograde hand, indicating days of the week, as well as a specific mechanism for displaying the date.
This mechanical heart is carefully hand-finished to the highest standards of fine watchmaking, including an openwork oscillating weight, and it is powered by two barrels in order to raise its torque and give it a power reserve of 48 hours.
TECHNICAL DETAILS - ROTONDE PERPETUAL CALENDAR CHRONOGRAPH
Calibre 9423 MC
Manual winding perpetual calendar chronograph
With 445 components
Measuring 25,28mm in diameter (Casing-up)
Measuring 32,00mm in diameter (Total diameter)
Measuring 7,70mm in Thickness (without hands shaft)
28,800 vph (4 Hz)
18-carat white gold or 18-carat pink gold
18-carat white or pink gold
Set with a sapphire cabochon
See-through sapphire crystal
Measuring 42,00mm in diameter
Measuring 14,90mm in Thickness
white galvanised guilloché
Silvered openwork grid with sunray effect
Black transfer Roman and Arabic numerals
Months and days of the week
Hammer- shaped in blued steel
Sword-shaped in blued steel
Sapphire crystal anti-reflective coating
3 Bar = 30 meters
Black alligator skin
18-carat white gold
Double adjustable folding clasp
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