A true go anywhere, do anything watch from a very well-regarded German brand. The inky black dial in particular is what makes this version of the 556 stand out for me. I owned this watch before and seriously regretted it after selling it - to the point where I knew I had to get one again, and here we are. I have watches from more expensive and prestigious Swiss and Japanese watchmakers, but somehow my collection felt like it had something missing without this Sinn 556i back in the rotation. To be honest, this would tick almost all the boxes for a so-called one watch collection. Easily one of my all time favourite watches and I'm glad to have it back on the wrist again.