Rare Helvetia hand-wound with 20 micron gold-plating and the manufacture calibre H831. The silvery white and perpendiculary brushed dial is in very good condition. It has evenly distributed and tiny patina dots that are only visible under certain light conditions. The logo "Helvetia" is printed and original. The watch functions very well and very precisely with a relatively high amplitude (please note the depictions of the timegrapher) The watch needs servicing if it sees daily use. The casing is in good, unpolished condition. The gold-plating is complete and there are no deep dents or scratches. The bezel has an interesting surface pattern that is rarely found. The bolted steel base has light signs of wear and an engraving of Cyrillic writings from 1965. All components of the timepiece (excluding the crown and strap) are original Helvetia. The plastic is in very good condition. The current power reserve is measured at 36 h. Crown: not by Helvetia, slightly worn, plaque defects on the cap Diameter: 34.5 x 37 mm Height (with crystal): 9 mm The blue leather strap is new, genuine leather and not original Helvetia Length of strap 11 + 7.5 cm = 18.5 cm A beautiful watch that convinces with it's patterned bezel. All functions are flawless.