this is an absolutely gorgeous and very rare IWC Ingenieur SL Jumbo (40mm) in steel and gold, coming with it´s original guarantee certificate, sold in 1989. The watch is in allover great and very sharp condition. The flawless T swiss T signed original vintage Ingenieur dial might have once been built in upon customers request, as it appears to have the silver indicies instead of golden ones. The IWC quartz caliber 2250 is running exactly in all functions as it should. The bracelet is in beautiful and very tight condition. One of the links seem to have been professionally produced later to extend the bracelet, which currently fits wrists up to 18cm circumference (Please see the image) The steel & gold version of the reference 3303 is very rare and hard to find in good condition, even more if it comes with black dial and it´s original paper-set.