Oyster Perpetual Retail Prices The scaled-down OP variations, 28mm, 31mm, and 34mm, operate on Caliber 2232, the self-winding movement with fifty five hrs of electrical power reserve and patented Syloxi hairspring for enhanced resistance to magnetism. Conversely, the more substantial 36mm and 41mm Oyster Perpetual watches rely on Caliber 3230, https://bobn615ubg9.blog-kids.com/profile