Pilot Quartz chronograph, ref. 230.206. First series from 1987, year of crossover from Heuer to Tag Heuer: one of the first produced, in fact the strap clasp and crown have the old Heuer logo, RARE and difficult to find. Mechanism: Tag Heuer calibre 185. Base calibre type: ESA 555/ETA 955. Steel case diameter: 43 mm excluding crown, original Heuer strap in stainless steel. Case height: 13 mm. Dial: Luminous black with luminescent triangular markers, colour change according to light conditions; the creamy light of the triangular markers is perfect, with three sub-dials, date display. Crystal: perspex. Rotating bezel with tachymeter. Bracelet in steel with buckle clasp, 19 cm including the watch. The watch has a series of functions used by pilots thanks to the fantastic Dubois Depraz 2000 rotating bezel. And 'tick' twice per second. All the functions of the chronograph movement work perfectly. Shipping via registered post with tracking