Longines 19.27, 19.95, 19.96, 21.25, 21.55 (19'''), Balance staff, Ronda: 1611

• Manufacturer Ronda no: 1611
• Total length: 574
• Fits cal: 19'''  19.27, 19.95, 19.96, 21.25, 21.55

• A: = 435 (ronda A).
• B: = 300 (ronda B).
• F: =   90 (ronda K).
• G: = 135 (ronda J).
• H: =   65 (ronda G).

Conversion: Ronda to DCN

• A = A
• B = B
• J = G
• G = J
• K = F