I'm not sure which one I want yet. I would rather have the 42 because my wrists are kind of small plus it comes with double AR... but, I've been reading on these forums that the UPO 45 is the best planet ocean so far. If I'm not mistaken, the 42mm and 45mm UPOs are exactly the same, correct? I don't see any differences in the photos. At puretime, the site says that the 4mm UPO has the correct logo, but doesn't say anything about having an updated dial.