So being new to Oris and the Aquis line which is my favorite, I was not sure what to expect from either size of 43mm and 46mm. My first purchase 3 months ago was a 43mm. I loved it but I knew right away I should have gone 46mm after wearing it a few days. I still love the 43mm but my 46mm sees all the wrist time. That's why I have my 43mm up for sale. The 43mm visually is awesome but my 46mm Great Barrier Limited Edition is not only visually awesome but the 46mm wrist presence is what I enjoy the most. You can't tell that much difference unless you have them side by side or have immediate pics on the wrist of each. Check out just how much big of a difference the 3mm makes in these photos.