Omega OT988 chronograph, 30s 18k gold round case, n.9173642, olive pusher at 2 o’clock and second pusher integrated in the crown. Black dial, multi-scale, painted arabic numerals. Hand-winding movement, cal.33.3, n.9384028. Leather strap. Size: 37 mm. Accompanied by Omega extract from the archives. Notes: Reference OT988, along with its twin reference CK988, is considered to be one of the most beautiful chronographs ever made by any watch manufacturer; It is an exceedingly rare model, iconic thanks to its oversized 37mm case, an unconventional characteristic for its era, and its historically important caliber 33.3 CHRO, which was originally produced in 1933 by Lemania. The present watch features a head-turning black dial with gilded Breguet numerals, one of the most desired versions by collectors.