IWC Ingenieur Chronometer ref. IW3521 men's wristwatch approx. 90s. Stainless steel, case no° 2538554. Automatic movement cal. 887/2 with good working order (-2 s/d, 227° amplitude). Black dial with baton indices, center seconds and date display. Stainless steel link bracelet with folding clasp. Used condition with signs of wear on the bracelet and case. Diameter approx. 34 mm measured without crown. Suitable up to a wrist circumference of approx. 19 cm.