am weight ▁is ▁a ▁class ▁in ▁box ing ▁for ▁box ers ▁who ▁we igh ▁above ▁ 1 1 5 ▁pounds ▁( 5 2 . 2   kg ) ▁and ▁up ▁to ▁ 1 1 8 ▁pounds ▁( 5 3 . 5   kg ). ▁ ▁Professional ▁ ▁History ▁The ▁first ▁title ▁fight ▁with ▁glo ves ▁was ▁between ▁Ch app ie ▁Mor an ▁and ▁Ray ▁Lewis ▁in ▁ 1 8 8 9 . ▁At ▁that ▁time , ▁the ▁limit ▁for ▁this ▁weight ▁class ▁was ▁ 1 1 0 ▁pounds . ▁In ▁ 1 9 1 0 , ▁however , ▁the ▁British ▁settled ▁on ▁a ▁limit ▁of ▁ 1 1 8 . ▁ ▁Current ▁world ▁champions ▁ ▁Current ▁The ▁Ring ▁world ▁rank ings ▁ ▁As ▁of ▁ ▁, ▁. ▁ ▁Ke ys : ▁ ▁Current ▁The ▁Ring ▁world ▁champion ▁ ▁Long est ▁reign ing ▁world ▁b ant am weight ▁champions ▁Below ▁is ▁a ▁list ▁of ▁longest ▁reign ing ▁b ant am weight ▁champions ▁in ▁box ing ▁measured ▁by ▁the ▁individual ' s ▁longest ▁reign . ▁Career ▁total ▁time ▁as ▁champion ▁( ▁for ▁multiple ▁time ▁champions ) ▁does ▁not ▁apply . ▁▁ ▁Active ▁Title ▁Re ign ▁ ▁Re ign ▁has ▁ended ▁ ▁Am ateur ▁ ▁Olympic ▁Champions ▁ 1 9 0 4 : ▁▁ 1 9 0 8 : ▁▁ 1 9 2 0 : ▁▁ 1 9 2 4 : ▁▁ 1 9 2 8 : ▁▁ 1 9 3 2 : ▁▁ 1 9 3 6 : ▁▁ 1 9 4 8 : ▁▁