Certainly, this is a Certina Blue Ribbon!? Yes, but is from a batch that was specially made for Volvo Cars to celebrate Volvo´s 50th anniversary in 1977.
This model was produced in quite some numbers, but we have not seen one as good as this Blue Ribbon “Volvo 50 years”! Therefore it has been given a full service, with both mainspring and crystal changed. The high quality movement is the famous caliber 25-651M with 26 jewels (The “25” stands for 25 mm movement diameter). Some of the “Volvos” has a less merited ETA movement. The stainless steel case is 36mm wide and the thickness is 12,3mm. Model reference is 913 1218 41. In September 2022 Hodinkee sold a similar watch priced at $1500 (https://shop.hodinkee.com/collections/vintage-watches/products/volvo-1977-anniversary?variant=39615839338571)