Two models of the SEAMAN version of the Dreamcast were released.

First model Model: Dreamcast Model: Seaman. This model was produced due to Seaman’s great popularity in Japan and was sold only in HMV stores. The casing is clear skeleton with a Seaman symbol on the console’s lid. It came bundled in a cardboard packaging with Seaman themed imagery on both sides, with a matching clear controller and VMU, Seaman game and Dream Passport CD, documentation, link cables, a microphone and an audio CD.
Notes: Units: 500, Product announcement.

Second Model: Seaman Xmas Package. Dreamcast Model: Seaman Xmas Package – This model was made as Seaman’s popularity still made it doable and the product numbers were 850. It came packaged in a red box and bundled with matching red controller and red VMU, Seaman game, Dream Passport 2, link cables and instruction manuals, microphone plus a special communication package which allows sending voice messages over the net.

Both models are considered very rare and thought after by collectors.