Longines 18.69Z, Balance, complete

LONGINES original balance complete in a very good recycled condition. Checked by a Wostep certified watchmaker. Pictures shows the actual balance.

• Fits caliber: 18.69Z

Technical data LONGINES 18.69Z Open face.

• 15 jewels, stem manual wind & set.
• S: = 18'''  40.65 mm.
• H: = 5.70 mm.
• N. = 18.000 A/h.
• Mainspring: 2.30 x 16 - 0,19 - 510 BA=Double brace endpiece.

Versions:

• 17.69NZ:  = 38.50 mm, related to: 37.9, 37.93, 
  
• 17.89M:    = 38.35 mm, ratchet wheel below barrel bridge.
• 18.25ABC: = 40.70 mm, share some setting mechanism paerts with 18.69Z
• 18.26ABC: = 40.70 mm. ??