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SRP Turtle Watch Case: PVD Matte Black Finish

Namoki Mods

SRP777 "Turtle" Case: Matte Black PVD Finish


With classic design inspired from the iconic Seiko 6309 watch series, we're proud to present to you our SRP777 "Turtle" case series. With this cases' refined modern design, a composition of solid 316L stainless steel, and an impressive 45mm case diameter, we have no doubt you'll be confident in the value of your new custom SRP777 build.

Designed to fit all original and aftermarket Seiko SRP77x (Turtle Series) parts.

SRP777 Watch Case.
Case Reference: 4R36-04Y0.


  • Case Diameter: 45mm
  • 316L Surgical Grade Stainless Steel Construction
  • Fits all original and aftermarket SRP77x mod parts
  • Drilled Lug Options
  • OEM Water Resistance


  • 2x 22mm Fat Spring Bars
  • 1x Bezel Click Spring
  • 1x Crystal Gasket
  • 1x Caseback Gasket

*Drilled lugs are holes at the lugs drilled through the watch case itself that allow the release of the springbars by pushing a small tool through them. This makes it significantly easier to exchange and install different straps!

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