Should I get a Barrel 47mm or a Barrel 42mm? Mikaila Updated May 03, 2020 17:59 Follow The 47mm or 42mm measurements refer to the diameter of the watch face. To see a size comparison between the two, check out our video below: Please see our Printable Size Guide for more details. Related articles Are Original Grain watches water resistant? What is the color variance of the wood? What is the extended Holiday Return Policy? Return Policy Does OG offer wholesale pricing? Comments 0 comments Please sign in to leave a comment.