BULOVA 7AP, 10BH, 10BM (7.75 x 11'''), Balance staff, Ronda: 406
- Manufacturer Ronda no: 406
- Total length: 292
- Fits cal: 7AP, 10BH, 10BM (7.75 x 11''')
- A: = 292 (ronda A).
- B: = 144 (ronda B).
- F: = 51 (ronda K).
- G: = 80 (ronda J).
- H: = 37 (ronda G).
Conversion: Ronda to DCN
- A = A
- B = B
- J = G
- G = J
- K = F
