Compatible with 31mm Rolex Midsize watches. The included gasket provides waterproofing and designed for. Rolex Midsize Datejust: 68240, 68243, 68248, 68263, 68273, 68274, 68275, 68278, 68158, 68159, 78158, 78159, 78240, 78243, 78246, 78266, 78273, 78274, 78278, 78279, 78286.
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