Seiko Presage Cocktail Negroni SRPE41J @ AUD 449, best price I have seen for this unit. I have the honeycomb presage which I am very fond of. Automatic with leather deployant strap, 38.5 mm. It's hardlex and 50m but don't normally get sapphire at this price point and you aren't taking a leather-strap cocktail watch for a snorkel.
Jody from Just One More Watch had a detailed profile recently, which brought this watch to my attention.
https://www.youtube.com/watch?v=_yDquqV4MJg
I contacted Starbuy directly to ask about a price-match and they were very quick to respond with a one-day deal that actually undercut the deal I was previously looking at. I have no affiliation with Starbuy.
Deepak at starbuy is an awesome bloke, had some nice watch chats with him via email in the past.