Vintage NOS Omega Cal. R-13.5 R13.5 Winding Stem Swiss Made

One New Genuine Omega Balance Staff R13.5-1321 Cal. R13.5 Part #1321 240 241 243

Vintage NOS Omega Cal. R-17.8. R17.8 Winding Stem Swiss Made

Unbranded to fit OMEGA R13.5 WINDING STEM TAP 1.0mm, PART 401-662F - NOS

One New Genuine Omega Balance Staff R13.5-1321 Cal. R13.5 Part #1321 240 241 243

Vtg Omega Original Genuine Cal 550 Ref 1160 Automatic Watch Male Winding Stem

Omega Cal. R13.5-240-241-242-243-244-245-250-251-252 Winding Stem ×1p New/Neu

Genuine NOS Omega Winding Stem for Cal. 600 Part No. 1160 Vintage Swiss 600-1160