The Lange 1 192.029 has a moon phase integrated with the day / night display at 5 o'clock. It is a highly practical model with a 72-hour power reserve and dial with an indicator on the 3 o'clock side and a large window with a date display on the 2 o'clock side.

The most distinctive feature of Lange 1 is that the dials are laid out in asymmetry and do not overlap. They are placed while maintaining their relative balance precisely. Grand Lange 1 is a larger model than Lange 1. The outsize date has grown accordingly, and is the largest date display of any A. Lange & Söhne model ever.