Hello...
No, it was a Walther PPK in 7.65mm, otherwise known in the US as the .32 ACP.
I saw the part of the movie "Dr. No" just last night. They made him trade in his Beretta for the Walther. They overestimated the stopping power of the 7.65mm cartridge, IMO. They, the overseers of J.B., stated that "all the CIA agents" were carrying the Walther.
Cheers,
Gary