I'd also like to see the internals - perhaps they're similar in construction to the originals.
One problem you may not have noticed on the replica is the missing trip meter.
When you get the new one mounted, send the old one to me for repair!
Wanted: Dead, smashed, crashed or trashed gauges
BMW GAUGE REPAIRS - TACH*SPEEDO*CLOCK*VOLT METER *PODs & LIGHT BOARD*