Annual and perpetual calendars. Calendar complications our are favorite types of watches. Calendar watches that display the date or the date and month are fairly common. Those that have an intricate mechanism to recognize which unlike typical calendars watches which are programmed for 31-day months, and required corrections after months with 28, 29 or 30 days, the mechanical mechanism of the annual calendar recognizes which months of have 30 and 31 days. This means it requires adjustment just once every year in February since this month has 28 or 29 days.
An even more complicated calendar complication is the perpetual calendar. The perpetual calendar takes account of the leap-year cycle with its months of 28 or 29 days.
Vacheron Constantin Quai de l’Ile Annual Calendar. Vacheron Constantine brought out two new enthralling calendar complications watches at SIHH 2011. The first is the Vacheron Constantin Quai de l’Ile Annual Calendar. As it's name indicates, it is an Annual Calendar watch. This is a fairly large watch with a 43mm diameter, available in either 18K pink or white gold case. The 43mm case size is in keeping with current trends where larger watches are what are desired. In keeping with contemporary trends, this watch is delivered with two straps, a traditional leather strap and a sporty rubber strap, either in black or brown.
The face of the watch displays the hours, minutes and small seconds at 9 o’clock, as well as the annual calendar with retrograde date display, a month display and a moon-phase indicator. Inside this watch is a new in-house movement, the 2460 QRA is a self-winding movement which beats at a smooth 28,800 vibrations per hour and has 40-hour power reserve.
Vacheron Constantin Patrimony Contemporaine Perpetual Calendar Patrimony. In a more classic design, Vacheron Constantin delivers a more classic calendar watch, the Contemporaine Perpetual Calendar. This watch has a 41 mm-diameter 18K pink gold case. The dials displays the hours, minutes and perpetual calendar featuring theweek in a subdial at 9 o’clock, the date in a subdial at 3 o’clock, the month and leap year on a 48-month subdial at 12 o’clock. There is also a moon phase indicator at 6 o’clock.
Inside is the in-house Calibre 1120 QP drives a hand-wound movement which beats a 19,800 vibrations per hour and has a 40-hour power reserve.
These two watches are fine addtitions to Vacheron Constantin line of complication watches.
About Vacheron Constantin. Vacheron Constantin was founded in Geneva, Switzerland in 1755 by Jean-Marc Vacheron. This makes it the oldest watch manufacturer in the world with an uninterrupted history.
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