Unitas winding stem 6497 6498 / Bestfit 793

1 Tige de remontoir Unitas  / 1 Unitas winding stem

Neuf de stock / New old stock (very slightly bent, almost invisible)

Cal : 6497 and 6498

A/E square : 90 / 515
C hub : 140
F pilot : 50
D Thread : 1.20 mm

Length 27.9 mm

Bestfit code 793 , similar to Flume code W1418 (this is not a poor copy made in China like so many stems for these calibers...)