SEIKO Prospex Monster Black SRP583K1 Rotating Bezel 4R36-01J0 Chapter Rings click the reference link below

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NOTE: This is NOT the protector / shroud

5 mm Inner Diameter 35 mm

86016575 Color White Material Ceramic Outer Diameter 43 mm Inner Diameter 31 mm

SEIKO Prospex Monster Black SRP583K1 Rotating Bezel 4R36-01J0 Chapter Rings click the reference link belowThis is the original rotating bezel for the Seiko Monster SRP583 black Ion Air Diver This bezel comes with the gasket o ring. This bezel fits among other's the following case numbers: 4R36 01J0, 4R36 O1JO, 4R36 00V0, 7S36 0350, 7S36 0351, 4R36 02B0, 4R36 03B0, 4R36 02G0, 4R36 02P0 Related models: SRP583K1, SRP583J1, SRP583P9, SRP315, SRP457 Product Specifications Brand Seiko Bezel ref. 87062495 Color Black Material Stainless Steel Outer Diameter 42 mm