Oyster Perpetual Retail Selling prices The smaller sized OP variations, 28mm, 31mm, and 34mm, run on Caliber 2232, the self-winding movement with 55 hrs of energy reserve and patented Syloxi hairspring for improved resistance to magnetism. Conversely, the larger 36mm and 41mm Oyster Perpetual watches depend on Caliber 3230, released https://pennt233ebv0.blogadvize.com/profile