Case material: Yellow gold; Charge: Manual; Conditions: Used Year : 1980; Presentation condition : With dealer guarantee ; Price on request Gmtbroker Reference: 3633J An 18k Yellow Gold  Rare  Ribbed Case Vintage Gents Dress Wristwatch, lapis lazuli dial, an 18k yellow gold  polished  ribbed case, an original black leather strap with an original 18k yellow gold pin buckle, sapphire glass, manual wind movement, in excellent condition, comes with a presentation box, our own certificate of authenticity and our own one year warranty.  N.B. This remarkable timepiece, together with its ribbed case and lapis lazuli dial, is a very rare and exceptional addition to ones collection.