The A. Schild 1087 is a mechanical watch movement with a pin-lever escapement and a two-layer base plate. The use of bushings for almost all bearings allows for variants with more jewels. An ingenious design feature entails the use of one simple part to replace the setting-lever spring, yoke, and yoke spring. It is worth noting that the A. Schild 1087 is equivalent to the Muller-Schlenker 17a and Parrenin 66 movements, with the production likely being passed from Parrenin to Muller-Schlenker. This movement offers manual wind functionality, a sub-second display, and was typically utilized during the period of approximately 1970.