Thanks for all the nice comments, folks. We all like our new babies to be admired, don't we?
So, one week on and, apart from one day when I NEEDED to wear a chronograph, the Kon-Tiki has not been off my wrist except to shower and swim. I haven't been able to do the full "one watch for a week" thing, but I have been looking at wearing the same one for at least two or three days. Automatics start to make more sense when you do that, and I can see that they are an excellent choice for the "one watch" or "daily work watch" scenario.
This one was always going to be a keeper. The fact that it ended up coming to me as a gift makes it doubly so. It is also helping to overcome my phobia of '70s watch styling, though I think the wackier stuff will always be beyond me. This and the Dynamic are probably about my big-enough style-wise. In many ways they make a nice pair, with differences of appearance but the nice wearable shape and superb movement in common. I haven't done a proper timing test on this one, but it has been between +10 and +15 per day. Hack and count to 12 every day and it wouldn't be far out...Hmm, that gives me an idea for an experiment...adjustment by rate and approximation...do that every day for a week with no reference to other time sources and where will it end up? It's a bit like Heyerdahl's notion of pointing the bow west and going with the flow!
My "first" Kon-Tiki is a fantastic watch. I shall always have an eye open for another vintage. I'm still in two minds about whether I NEED the modern one, but I find it very attractive indeed. We shall see. Thanks for reading!