!!!Mod Seiko !!! Seiko Diver Marine Master Black Dial Custom Modded Watch This watch contains aftermarket customisations without permission from the brand. This could impact the watch value and might void manufacturer warranties , Including , polishing , aftermarket dial , hands , bracelet , crystal , bezel insert , inner ring , case back , and pushers. We ask sellers to mention any known aftermarket parts. We do not guarantee water resistance on vintage watches. Please use photos as part of the description. We ask sellers to mention any known aftermarket parts. Brand: Seiko Model: Marine Master (Black Dial) Country: Japan Date: Practical Calendar (One Step Forward) Movement: Japanese 6309-00K0 Glass: Crystal Case: Steel Band Size:23 cm Mechanism Construction Period: 1900-2000 Bezel: Fixed Crown :not screwed Case diameter excluding crown: 41 mm x 48 mm Case diameter including crown: 44 mm x 48 mm Note:The watch contains aftermarket parts.(dial, bezel insert, hands, inner bezel, bracelet) Excellent Condition Notes: used, Running, with all functions working, Please look at the photos carefully Customs fees are the responsibility of the buyer The watch will be packed carefully Cargo: UPS-DHL-FedEx