pocket watch crown steel
€10.00
Pocket watch Crown steel thread 120 (D)
1 A = 7,0 mm, B =3,2 mm, C = 2 mm,
2 A = 6,9 mm , B = 3,5 mm, C = 2,2 mm
3 A = 7,5 mm, B = 3,5 mm, C = 2,2 mm
4 A = 7,8 mm, B = 4,0 mm, C = 2,2 mm
5