FHF 27 inca (12-13'''), Balance staff, DCN: 2187

• 
  DCN no: 2187
• 
  Fits cal: 27, 271, 271-2 incabloc (12-13''').

• 
  A: 290
• 
  B: 136
• 
  F: 71
• 
  G: 100
• 
  H: 38

Versions with height: 3.85 mm.

• 
  26: 12''' Base caliber.
• 
  261: 13'''
• 
  261-2: 13''' date.
• 
  261-2N: 13''' date, minor mod.
• 
  262: 12'''
• 
  263: 12'''
• 
  264: 12'''
• 
  265: 12'''
• 
  266: 12'''
• 
  267: 12'''

Versions with height: 3.45 mm.

• 
  27: 12'''
• 
  271: 13'''
• 
  271-2: 13''' date.