Oyster Perpetual Retail Price ranges The smaller OP versions, 28mm, 31mm, and 34mm, run on Caliber 2232, the self-winding movement with 55 hours of power reserve and patented Syloxi hairspring for improved resistance to magnetism. Conversely, the greater 36mm and 41mm Oyster Perpetual watches rely upon Caliber 3230, introduced in https://tonyt010rja0.scrappingwiki.com/user