Just was in the shed and found a brand new speedo (260km/hr), tacho' (6750 red line), fuel and temp guage I'd bought a while back but couldn't use - it's for the later, electronic speedo and I needed a mechanical...
I would say it was for the Vectra, as it has the full binicle with a blank for the clock to the left - but the instruments can simply be unscrewed and fitted into a Calibra or other housing, if required.
Some of you will probably be suffering from the dreaded flaking of the paint on the dials, and this is an easy way to start afresh!
Still in the box and $75 (ONO) + P&P.