Lemania S27-770, Main spring

• 
  H: 1,70
• 
  D: 9
• 
  F: 0,095
• 
  L: 320

• 
  Fits cal: S27, S27 T1, DS27

Data: Lemania S 27

• 
  17 jewels, manual wind, center second.
• 
  S: = 12''' 27.0 mm.
• 
  H: = 4.9 mm.
• 
  N: = 18 000 A/h.
• 
  Power reserve: 42 h.

Versions:

• 
  S 27: -
• 
  S 27 T1: minor modifications.
• 
  DS 27: date.
• 
  CH 27: chronograph.
• 
  CH 27 C12: chronograph, 12 hour counter.