Zenith, Switzerland, a late 20th century ref. 53-0370-400 "Rainbow" wrist chronograph, 31 jewels, automatic winding cal. 400 rhodium plated movement with lever escapement and micrometric regulator in a round stainless steel case with gold bezel, arrow marker blue dial with date aperture at 4:30, minute and hour registers, and constant seconds, at 3, 6 and 9:00 respectively, and luminous alpha hands, 39mm

CASE: Fine scratches and dings; Case back with fine scratches; Bezel with dings and gouge at 35; Bezel insert with a edge dings and minor loss to color; Pushers with minor wear and loss to gold plating; Top of crown lacking gold layer; Strap good; Dirty. DIAL: Very good. HANDS: Very good. MOVEMENT PLATES: A few fine scratches and marks; Rotor with minor loss to plating from rubbing case back; Bottom plate also with marks from rotor contact; Dirty. MOVEMENT FUNCTION: Running order (winds, sets and ticks). Date advance and quick set functional. COMPLICATION: Functions properly, circa 1995