Out of Stock

SKX007 Case : MM300 3:00 Crown

4.75 out of 5 based on 4 customer ratings
(4 customer reviews)


SKX007 Case: MM300 3:00 Conversion

Polished and Brushed Silver


  • Diameter: 42mm
  • Lug to Lug: 47.7mm
  • Thickness: 10.7mm
  • Lug Width: 22mm
  • Finish: Polished and Brushed Silver
  • Compatibility: All OEM and Aftermarket SKX007 Parts Fit Including Bracelet
  • Drilled Lugs


  • Case Back Gasket
  • Crystal Gasket
  • Click Spring

Out of stock

SKU: WM3OCLKMM300 Categories: , Tag:

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4 reviews for SKX007 Case : MM300 3:00 Crown

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Introducing the MM300 3:00 Conversion Case from Watch-Modz! Inspired by the Classic MarineMaster case, the SKX compatible MM300 Case has become amazingly popular in the modding community. It’s distinct finishing and unique curves give this case a truly luxurious look over the other SKX compatible cases available. The aggressive curved sides have dual polished and brushed finishing that just appeals to the eyes. Now available in a 3 o’clock style case!

It has been designed to fit all OEM and aftermarket SKX007 parts including the bracelet

Please note that this is not the monobloc version and can fit all SKX parts like any of our other SKX007 cases available on site.

Don’t forget to grab a movement for the heart of your new case found HERE!

Watch-Modz SKX007 Case : MM300 3:00 Case

Case Dimensions:

Diameter: 42mm

Lug to Lug: 47.7mm

Thickness: 10.7mm

Lug Width: 22mm


  • 316L Surgical Grade Stainless Steel
  • Fits all original OEM and aftermarket SKX007 mod parts
  • Drilled lugs
  • 200M of Water Resistance like OEM SKX
  • Polished and Brushed Sides

Each Case includes:

  • Bezel Click Spring
  • Crystal Gasket
  • Case back Gasket

Read more about the iconic classic Seiko MarineMaster that this beautiful case is inspired by.

Try our traditional MM300 Case!



We know how important SKX007 cases can be as it determines the entire base look of your build. We have taken every step to make sure that the finishing and tolerances are perfect on all of our cases. Quality is of the utmost importance, and we strive for excellence. If you are looking for Silver, Gold, Black, or even Chameleon Cases, Then we have you covered!

Are the typical replacement SKX007 cases not your thing? No Problem!

We have many variations of the tried and true design, including the NCG SKX case, Samurai, and even a 62mas Conversion case!

Don’t hesitate, pick up a quality case today, at a price you wont regret!

Finding a case for your next build has never been so easy!