[Sweephand]

I've had a question about the production year for a Seiko 5, with the 7009 movement. I think these were made in the 1980s and early 1990s before the 7s26 replaced it. Does anyone know if this particular model, 7009-3040, with a serial number of 22xxxx was from 1982 or 92?

Thanks in advance,
Stephen