Built Watch: Namoki Enamel MM1000 Sumo Diver, Black

Watchdog Supply Co.

Built Watch: Namoki Enamel MM1000 Sumo Diver, Black


Here at Watchdog Supply Co., we take pride in our craftsmanship and attention to detail. It is standard here that every one of our built watches are individually hand-assembled and tested for quality by a professional trained in watch assembly, repair, and modification. Our watches are held to the highest possible standard of craftsmanship achievable at this price range, and this beautiful timepiece is no exception.


  • MovementSeiko [SII] NH35a (Date Only) Automatic Movement: White
  • Case: Sumo Case, Brushed and Polished Steel Finish
  • Bezel: Sumo Bezel, Brushed and Polished Steel Finish
  • Bezel Insert: Lumed Ceramic Bezel Insert: Sumo
  • Bracelet: Sumo Bracelet, Brushed and Polished Steel Finish
  • Chapter Ring: Seiko Chapter Ring, Black with White Markers
  • Crown: Steel Sumo Screw-Down Crown
  • Crystal: Double-Domed Sapphire Crystal, Blue AR Coating
  • Caseback: Solid Sumo Caseback, Polished Steel Finish

Dial & Hands:

  • Dial: Enamel Dial: Namoki Divemaster, Black
  • Handset: MM1000, Polished Steel Finish


  • Case Diameter: 44.5mm
  • Case Thickness: 14.0mm
  • Lug-to-Lug: 52.0mm
  • Lug Width: 20.0mm

 This is a one-of-a-kind build that will not be reproduced in the future.

All gaskets have been lubricated and sealed, and the case has been pressure tested to 6 atmospheres (~165 ft.) twice, once before assembly and once after.

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