The Aurore 12 is a manual wind mechanical watch movement introduced around 1925. It features a bimetallic screw balance and a stem mechanism without a setting-lever spring. The bridge shapes of the movement may vary from those depicted in the Ebel 8.75''' reference. The distinctions between the Aurore 12 and other movements such as the 159, 185, 208, 212, 220, 238, 246, 251, 259, 261, and 277 are not specified. The Aurore 12 incorporates functions such as a sub-second display.

The Aurore 12 features the following functions:

• Manual Winding
• Sub Second