70.531 (Old : 3025/1)
SW300-1
SW330-1
SW500
Wording :    Jewelled shock-absorber, cylindrical, to press in, for balance, BOTTOM-(Main plate)
INCA Réf.090.956.20.000/0-0
Code Horloger : 70.531 (Old : 3025/1)
Drawing : SW300.2224.00.-- - SW100652.A