Case Back For Omega Seamaster Wrist Watch Ref 1660191-3660835.

Vintage Genuine Case Back for Omega Seamaster Watch Ref. 166.0209 P-146

Vintage Genuine Case Back for Omega Seamaster Watch Ref. 166.067 P-1

Vintage Genuine Case Back for Omega Seamaster Watch Ref. 66009 P-60

Genuine Case Back for Omega Seamaster 600 Watch Ref. 135.011 P-29

Genuine Case Back for Omega Seamaster Automatic Watch Ref. 166.0209 P-68

Genuine Case Back for Omega Seamaster 600 Watch Ref. 135.011 P-49

Vintage Genuine Case Back for Omega Seamaster Watch Ref. 166.0268, 366.0868