Zenith, wristwatch

18kt yellow gold bicompax chronograph, 36 mm. round case - ref. 102155-13518, white dial with roman numbers and golden indexes, two auxialiary counters for the chronograph, tachymeter scale, mechanical movement with manual winding, 156 caliber, original 18kt yellow gold strap with adjustable closure, complete with box, peso 71,8 gr.