BULOVA 10BC, 10BCC, 10BS, 10BT, 10BTC, 10UT, 10ZC...(10.5'''), Balance staff, Ronda: 427
- Manufacturer Ronda no: 427
- Total length: 287
- Fits cal:10BC, 10BCC, 10BS, 10BT, 10BTC, 10UT, 10ZC, 10ZCC (10.5''')
- A: = 287 (ronda A).
- B: = 143 (ronda B).
- F: = 51 (ronda K).
- G: = 90 (ronda J).
- H: = 37 (ronda G).
Conversion: Ronda to DCN
- A = A
- B = B
- J = G
- G = J
- K = F
