I only discovered this reference a month ago and went searching for it when on holiday in London. Fortunately I came across two and had the opportunity to try both on. They fitted my smaller wrist so,so well compared to the current Daytona. Little did I know that they measure 37mm rather than the current size of 40mm. I had always assumed that all Daytonas were 40mm. I would not have hesitate to buy a 6263 if not for the prices they are currently selling at. Then again, many say that the current prices can only travel in one direction!!