Joining a good part of nostalgia with reliability, simplicity, good power reserve, excellent readability and light on the wrist/ease of use this 5513 has advanced to be one of my favourite/ most worn watches in 2016. At the bedside by night, on the wrist by day the philosophy behind it is quite simple. In the last 60+ years it has been all over the World. It has been serviced and fixed by some excellent and by other mediocre watchsmiths in the most remote corners in the World - with those parts that were available and not those that are period correct, a crown here, a plexi there, some hands that were available. Relumed, repolished and just "fixed" this has never seen a ROSC from the inside and it never will.