UNIVERSAL GENEVE chronograph special edition Ayton Senna, self winding, Switzerland around 1998, reference 998.310, stainless steel/Karbon combined including bracelet with deployant clasp, screwed down case back, winding crown & pusher, black structure dial, display of hours, minutes, constant second, day, date & chronograph, bezel with engraved tachometer graduation, diameter approx. 42 mm, length approx. 18,5 cm, condition 2, property of a collector