Longines 431

 
Longines 431

Longines 431

Technical data

Manufacturer:Longines
Caliber:431
Size:11 1/2'''
A/h:36000
Number of jewels:25
Escapement:Pallet lever
Balance types: Glucydur anular balance
Shock protection(s): KIF Ultraflex
Balance bearing / direction hairspring:Clockwise
Moveable stud:yes
Adjust mechanism:Excenter
Features:
  • SCI (indirect center seconds)
  • QG (date indication (aperture))
  • AUT (selfwinding)
Production period:1967 - ?
Literature: Flume: K3 214

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