The price on the website in Aussie dollars is $78.52 but if you check out in British Pound it should come to approx AU$73.51 delivered (delivered without original Seiko case). I checked all other currencies, but GBP came at cheapest if you are using appropriate credit/debit cards without fees. (eg. 28 Deg, Citibank)
Other colours are also available at similar prices:
This watch would suit people with small wrists as the diameter is 37mm.
Black dial with lumibrite hands and markers
Stainless steel case and bracelet, see-through screw case-back
Three fold clasp with easy push-button release
Day / Date at 3 o'clock position
Water resistant
Automatic movement, 21 jewels
Approximate measurements
Case diameter: 37 mm (without crown)
Weight: 120g
More information: http://www.watchsleuth.com/seiko5finder/search/?MOD=SNK809
Review with various straps: http://lithicgoods.com/2016/08/seiko-skx007-snk809/
Product info was copied from previous deals (here and here) - credit to @28Degrees
For those wondering, US$104.59+shipping on Amazon