This vintage Swiss ladies watch from the House of Gubelin has a manual wind mechanism and the dial is Marked T Swiss Made T indicating the watch contains tritium in both the hands and dial for illumination. The watch is in working order (see video) and has some wear to the case, mainly at the sides (see Images). The watch is currently fitted with a Speidel USA band, which would not be the original. Case measures 22mm in diameter, not including the crown. Please see images. If you have any questions, please feel free to ask.