Yep; MMK 45s. At least that was what we found in Dons - my - 696, and as barry says; a very versatile pickup indeed; I've seen them discussed and compared favourably to the early DiMarzio SDs on other sites for what ever that's worth?!
All I know is that I got to play a 696-12 and a VA912 3 years ago and - as a gigging player - would have picked the 696 over the VA, which was a superb and utterly fabulous instrument in every sense of the word ....
The colour is an interesting wrinkle; Squidheads' 695-12 is also trans blue - I wonder if it could be that bloody simple?! Does yours have the saddles with 3 notches?
Ha! Don's visiting, eh?! He's a top bloke and knows lots about these things and I'm sure you'll get along famously; he has an amazing collection and you sgould get up there and have a play with it before he moves away!!
Remind the silly old fool to take a few pics for the diehards in here, too, eh?!
John