1958 “small crown” Submariner 5508 (writing in progress) History Dial / cf 6536 dial batches / 6536 adjacent LON 585 36962 LON 178 47048 LO 12 74 86094 RUK papers . . . inc name Matching engraving ! 1530 cal cf 6536’s…. Here you can see the unique movement number, 75976 : bracelet SHWR work