Vacheron Constantin Traditionnelle Complete Calendar Openface

The Complete Calendar Complication

There are several types of calendar watches, ranging from simple date and day-date to highly complex annual and perpetual calendars. Among these, there is also the complete calendar complication, which shows the day of the week, month, date, and moon phase. 

Although a complete calendar is a practical complication to have on a watch, we do not see many of them in modern high-end watches today. Thankfully, Vacheron Constantin continues to make complete calendar timepieces, and it has become somewhat of a signature offering from this renowned watchmaker. 

Traditionnelle Complete Calendar Openface Ref. 4020T/000G-B655

Vacheron Constantin released the Traditionnelle Complete Calendar Openface Ref. 4020T/000G-B655 in 2021. While Vacheron Constantin already offered a standard Traditionelle Complete Calendar in its catalog, this open-face variant is the newer iteration. 

The watch features a 41mm case crafted in 18k white gold, which is home to an open-worked sapphire dial for a view of the movement inside the watch. The dial is designed so that you can see the entire moon phase disk at 6 o’clock, in addition to the day and month disks at 10 and 2 o’clock, respectively. The date is displayed via a pointer hand pointing to a 31-day scale around the periphery of the dial. Look closely at the date hand and you will see a crescent at the tip. 

Beneath the sapphire dial is the self-winding Caliber 2460 QCL/2, complete with anthracite NAC-treated main plate and bridges. This automatic movement operates at a frequency of 28,800 beats per hour and supplies the watch with 40 hours of power reserve.

The movement is also stamped with the coveted Geneva Seal, which confirms that it was made in Geneva, Switzerland while adhering to a set of exceedingly high standards concerning the finishing and decoration of movement. 

The back of the Vacheron Constantin Traditionnelle Complete Calendar Openface watch is also furnished with a sapphire caseback for another perspective of the beautifully finished and masterfully engineered mechanical movement From this side, you can clearly see the striking 22k gold rotor and the brand’s famous Maltese Cross emblem, also crafted in 22k gold. 

Exemplary High Horology From Vacheron Constantin Traditionnelle

The Traditionnelle Complete Calendar Openface is paired with an elegant gray alligator strap with a white gold Maltese Cross motif buckle.

An exemplary piece of high horology, the Vacheron Constantin Traditionnelle Complete Calendar Openface is made for the watch connoisseur that has profound respect for the mechanics of a fine timepiece. Everything is out in the open because there is so much beauty inside this Vacheron Constantin watch that deserves the same level of appreciation as the stunning exterior that houses it.