Technical specifications : Functions : Hours.Minutes.Seconds.Week Days – Movement : Patented ROCS 1. 3 - Ressence Orbital Convex System - driven by the minute axle of a specially customised 824/2 calibre. Caseback winding and time setting via lever. Self-winding. 36 hours power reserve. 28,800 vibrations per hour. 40 jewels. 27 gears