- Brand
- A. Lange & Sohne
- Series
- Datograph
- Title
- Datograph Perpetual
- Country of origin
- Germany
- Type of watch
- Gents
- power reserve
- 36 of watches
- case diameter
- 41 mm
- Case thickness (mm)
- 13.5 mm
- Hand Works
- Chrono
- Clock
- minute
- second hand
- date
- tachometer scale
- lunar calendar
- perpetual calendar
- transparent back
- Watches