Following the case and movement numbers, the CofA lists the "year of manufacture" as 1967 and mentions under "Other characteristics" that it was "modified" from a base model 6694, without reference to the year 1966.
If another person was to rely only on the CofA for the provenance, I believe they would assume that the watch, including case and movement, were manufactured in 1967 and not a year earlier.
My email to VC was promptly answered this morning that the certificate was issued in conformity with the records . It seems to me that the meaning of "manufacture" and "modify" are being confused and the certificate is not an accurate record. I remain concerned...if only 1966 was mentioned somewhere!
This poll is therefore to seek opinions on whether, given the information I've provided, should the Certificate of Authenticity issued by VC be considered in error? Or, am I being unreasonable in this belief and there really is no difference? The weight of your opinions will help me decide the next steps!