| Lange & Sohne Watch Index | Internet Wristwatch Index | How to regulate mechanical watches |
| Calibre | Case | Strap | Dial | Diameter (mm) |
Height (mm) |
Model Number |
| L901.5 | 18-carat gold | croc | light champagne | 38.5 | 10.4 | 109.021 |
| L901.5 | 18-carat pink gold | croc | silver | 38.5 | 10.4 | 109.032 |
| L901.5 | platinum | croc | silver | 38.5 | 10.4 | 109.025 |
| L901.5 | 18-carat gold | 18-carat gold | light champagne | 38.5 | 10.4 | 109.321 |
| Link to Lange 1 Moonphase section of A. Lange & Sohne website |