Gruen 825, 826, 827 (10,5'''), Winding stem, DCN: 726

• 
  DCN no: 726

• 
  Thread: 110

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  Fits cal: Gruen 825, 826, 827 (10.5''').

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  A: = 88
• 
  B: = --
• 
  C: = 120
• 
  D: = 110
• 
  F: = 410

Versions:

• 
  825: sub second.
• 
  826: center second (open face).
• 
  827: center second (hunter).