Ladies Omega Constellation in stainless steel. Quartz. 25 mm case size. Ref 6552/864. Fine Pre-owned Omega Watch. Certified preowned Omega Constellation 6552/864 watch is made out of Stainless steel on a Stainless steel Link band with a Stainless Steel Deploy buckle. This Omega watch has a 25 x 25 mm case with a Round caseback and White Stick dial. It is Gray and Sons Certified Authentic and comes backed by our 12-month warranty. Each watch is inspected by our certified in-house Swiss-trained watchmakers before shipment including final servicing, cleaning, and polishing. If you have inquiries about this Omega Constellation watch please call us toll free at 800-705-1112 and be sure to reference W518196.