It is for Rolex Submariner 1600, 1601, 1603, 1608, 15200, 15210, 16000, 16013, 16014, 16220, 16030, 16234 watches with 20mm lugs which takes fat spring bars. OYSTER WATCH BAND STAINLESS STEEL FOR ROLEX SEA DWELLER SHINY/MATTE HEAVY 316L.
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