Classic Piaget Protocol in 18k yellow gold on a black alligator strap. Manual. Ref 9154. Circa 1980s. Fine Pre-owned Piaget Watch. Certified preowned Classic Piaget Protocol 9154 watch is made out of yellow gold on a Black Alligator Leather band with a Gold Fill tang buckle. This Piaget watch has a 25 x 28 mm case with a Square caseback and Champagne Plain dial. Circa: 1980s . 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 Piaget Protocol watch please call us toll free at 800-918-2608 and be sure to reference W522014. Watch is in Very Good condition.