The retrograde is a hand that can usually be found on small dials on watches. Their specificity is to come back to their point of departure once they have covered the entire scale. The retrograde assumes its initial position and starts a new cycle, doing so perpetually. This hand is notably present on timepieces that display, in addition to the time, the days of the week or months and seasons. Such watches are referred to as watches with a retrograde hand. On certain watches, the dial and the display of the hour are counter-clockwise; the hands thus turn towards the left. This organization, which is called a retrograde display, exists also on the sectorial display of the hour or of the calendar. On so-called retrograde displays, the hands describe a circular arc before instantaneously coming back to their initial position to start a new cycle. This unceasing back and forth allows to create innovative and spectacular dials. RESERVOIR watch offers a retrograde minute that describes a 240° course going from zero to sixty minutes.