IWC JUMBO INGENIEUR SL QUARTZ
International Watch Co., Schaffhausen, "Ingénieur SL Quartz",
case No. 2280423, Ref. 9701. Sold on May 14th, 1982.
Fine and rare, heavy 18K yellow gold tonneau-shaped, center-
seconds, water-resistant, quartz wristwatch with instantaneous
date and an integral 18K yellow gold IWC link bracelet by Gay
Freres with deployant clasp. Accompanied by an IWC box,
guarantee, repair warranties (1998 & 2006) and original retailer's
Three-body, polished and brushed, screwed-down case back
and crown, sapphire crystal.
White with painted radial Roman numerals, inner minutes/
seconds track, aperture for the date. Yellow gold and black
With quartz standardization.