1941 Rolex Oyster Perpetual Chronometer Bubbleback Center Seconds Black dial 3372A fantastic and Uber rare in unpolished condition from its first owner 1941 Rolex Oyster Perpetual Chronometer jumbo 32mm automatic reference 3372 aka Bubbleback" with a fantastic no where to be seen black gilt dial with its original straight end links stainless steel bracelet 7205. The 1941 Rolex Oyster Perpetual Chronometer Bubbleback Center Seconds Ref. 3372 is one of the most charismatic early automatic Rolex models, representing a pivotal moment