AM 50, 8 days (10.5 - 13'''), Balance staff, Ronda: 47
- Manufacturer Ronda no: 47
- Total length: 352
- Fits cal: 50, 8 days (10.5 - 13''')
- A: 352 (ronda A).
- B: 190 (ronda B).
- F: = 49 (ronda K).
- G: = 79 (ronda J).
- H: = 42 (ronda G).
Conversion: Ronda to DCN
- A = A
- B = B
- J = G
- G = J
- K = F
