IWC 18k yellow gold gents wristwatch 'Der Fliegerchronograph', Switzerland around 1999, reference 3741, solid gold case including original bracelet with butterfly buckle, quartz, screwed-down case back & winding crown, black contrast dial, display of hours, minutes, constant second, datum & chronograph, diameter approx. 36 mm, length approx. 19,5 cm, original box & papers, condition 2, total weight approx. 151g, property of a collector