Longines 633, Yoke, no: 435

• 
  New LONGINES original part in factory sealed packaging.

• 
  Fits cal: 633

Data: Longines cal: 631.1 (ETA 2824)

• 
  25 jewels, automatic wind, hour & minute.
• 
  Size: 11.5''' 25.60 mm.
• 
  H: = 4.60 mm.
• 
  N: = 28.800 A/h.
• 
  Power reserve: 40 h.
• 
  Mainspring:

Versions: Suffix: 1 = 25 jewels, Suffix 2: = 17 jewels.

• 
  631: Base cal: ETA 2824
• 
  633: Base cal: ETA 2824, date, sweep second.
• 
  636: Base cal: ETA 2836, day, date, sweep second.