toave this be fully complete...
You WILL need the correct backplate as the quartzbackplate won't fit anymore once the correct movement is installed (this movement is higher then a quartz movement or the current movement)
I'm quite sure that the corresponding typenumber to the dial should be 844/2 because of the fact that 'automatic" is written on the dial.
most 844/1 or 844/3 models didn't have this line on the dial.
PS. a 980.006 is not a pewter-case, just an oversized regular ss case...
Hope this helps!

: Yes indeed, bit of a frankenwatch...
: The case is a quartz case and the dial is automatic.
: How they made the hands fit is a ? to me. Quartz hands won't fit on
: an automatic movement...
: The movement should be quite easy to track down. Some were
: Heuer-branded, some were not, so no issue there.
: Finding a correct backplate (should read 844/2 I believe) and
: correct crown (difficult to spot from the picture but it looks
: wrong too) will be another story....
: Other possibility...just sell it and mail me ;-)
: Cheers
: Johan