The wood is easy it's Sapele, the finish is more difficult but I'd hazard a guess that it's a clear poly urethane varnish may well have been sprayed, it does look like a custom made door.
I used sikkens cetol on a south facing oak door in 2007. Although I have not seen the door since then I did bump into the customer last summer and he said the door looks as good now as when I first did it.
Thanks for that info, very helpful. I am trying to work out which product to choose as I see some of the Novatech are not suitable for hardwood or interior finishes.
Does this mean I should choose a different stain for the inside of the door?