| Lange & Sohne Watch Index | Internet Wristwatch Index | How to regulate mechanical watches |
| Calibre | Case | Strap | Dial | Diameter (mm) |
Height (mm) |
Model Number |
| L901.2 | 18-carat gold | croc | white and gold | 41.9 | 9.9 | 115.021 |
| L901.2 | 18-carat pink gold | croc | black and grey | 41.9 | 9.9 | 115.031 |
| L901.2 | platinum | croc | white and silver | 41.9 | 9.9 | 115.025 |
| L901.0 | 18-carat white gold | croc | black | 38.5 | 10 | 115.029 |
| L901.0 | 18-carat gold | 18-carat gold | white and champagne | 38.5 | 10 | 115.321 |
| Link to Grand Lange 1 section of A. Lange & Sohne website |