Vintage Gruen Curvex Precision Women's Self Winding Watch Rare vintage Gruen Curvex Precision women's self-winding wristwatch still working and still in good condition. The watch does show some signs of wear throughout but there are no detectable scratches on metal band or any on crystal watch face. The metal band does un-latch at one end but only because the brass ring is a bit worn, as it still fits on a wrist quite well, but just fyi. Swiss movement (see "Switzerland" very tiny in the very bottom of the watchface). Beautiful timepiece for any outfit, please let me know if you have any questions!