I thought that Pulsar was Seiko but with a bit of air let out of the prices.
Have you tried talking to Telford Services (ad below), he's v. knowledgeable on these matters. << edited to add this bit which was the whole reason for the post!
Thanks for both replies. Seiko/Pulsar did finaly come back to me stating that the chrono in question is only supplied to the Mod and not for general sale as was the case with the Seiko which it has now replaced.