(Duration of stay) This is the number of days for which you may stay in the Schengen Area (within the dates of use of your visa) If the consulate has issued you a “visa de circulation” (valid for use one year or more), the number marked will be “90 jours”, and you are entitled to stay a maximum of 90 days in each period of 6 months.
(Duration of stay) This is the number of days for which you may stay in the Schengen Area (within the dates of use of your visa) If the consulate has issued you a “visa de circulation” (valid for use one year or more), the number marked will be “90 jours”, and you are entitled to stay a maximum of 90 days in each period of 6 months.
http://www.diplomatie.gouv.fr/en/coming-to-france/getting-a-visa/article/what-does-my-sticker-visa-mean