So following a complicated trade, I have a brand new SKX007 up for sale. Comes in generic box, with papers (stamped as from RSL watches, showing it as an August 2016 watch).
It's available as a head only, with a good quality black ZULU, on an OEM Seiko Jubilee (used), or on a Strapcode Super Engineer (also used).
Price for head only: £140
With ZULU or jubilee: £150
With Strapcode: £170
Straps also available, according to which goes with the watch.
Includes postage, naturally.