In 2009, Vacheron Constantin unveiled the Historiques American 1921, a re-edition of one of its classic timepieces from the Art Deco period that was made exclusively for the North American market. A highly desirable watch, it pays homage to what is, without doubt, one of the most beautiful yet original Vacheron Constantin models ever. Despite its modest (on paper) 40mm size, however, the squared case wears quite large on the wrist, discouraging some collectors. Listening to this feedback, the brand announced today that the Historiques American 1921 will be available in a mid-size, unisex version with a case measuring 36.5mm. Read on for all the details.