Cases
Showing 33–41 of 41 results
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Polished/Brushed Crown At 4 SKX013 To Mini SRP Turtle Conversion Case
43.46$ Add to cartPolished/Brushed Crown At 4 SKX013 To Mini SRP Turtle Conversion Case
- Material – HQ Stainless Steel 316L surgical grade.
- Description – Convert your SKX013/15 200M Divers Watch to a MINI SRP TURTLE with this superb unique case. OR BUILD A SRP MINI TURTLE TO YOUR OWN SPEC WITH THIS SUPERB CASE – Reminds us a little of the classic vintage seiko 6105-8000. Full size MINI TURTLE look case 20mm lug width – CROWN AT 4 – aftermarket bracelets fit. Fully tested to 200M PLUS. SKX013 parts fit – Drilled Through Lugs
- Dimensions – Diameter 39mm (without crown) – lugs tip to tip 43.5mm
- Included FREE with every case – Crystal Gasket (fitted) – Case Back Gasket – 2 x 20mm Fat Spring Bars
- Finish – High Polish/Brushed Case
- Water Resistance
43.46$ -

Polished/Brushed Full Size Seiko Samurai Conversion Case – 200M SKX007
43.46$ Add to cartPolished/Brushed Full Size Seiko Samurai Conversion Case – 200M SKX007
- Material: Stainless Steel 316L
- Drilled Through 22mm Lugs
- Includes Crystal Gasket, Case Back Gasket, 2 x 22mm Fat Spring Bars
- Finish : Brushed/Polished
- Water Resistant
43.46$ -

Polished/Brushed Replacement Case – Seiko SKX013 0030
43.46$ Add to cartPolished/Brushed Replacement Case – Seiko SKX013 0030
- Suitable for replacement of the SKX013 0030 200M Divers case
- Suitable Replacement for SKX013/15 0030 CASE
- Comes with Crystal Gasket, Case Back Gasket , and 2 x 20mm Fat Spring Bars
- Takes 2.5mm spring bars
- Water Resistant
43.46$ -

Polished/Brushed Seamaster Planet Ocean for SKX007/SRPD Case + Crown
Read morePolished/Brushed Seamaster Planet Ocean for SKX007/SRPD Case + Crown
- Material – HQ Stainless Steel 316L surgical grade
- Finish – Polished on the side and Brushed on top.
- Dimensions:
- Case Diameter: 42mm
- Lug to Lug: 47mm
- Thickness: 9.3mm (without caseback)
- Lug Width: 20mm
- Inclusions:
- 1 x Crystal Gasket
- 1 x Caseback Gasket
- 2 x 20mm Springbars
- 1 x Sterile Crown
- 1 x NH Stem
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Seiko 007 Case Starter Pack
Read moreSeiko 007 Case Starter Pack
- Introducing the CT700 Starter Pack! This starter pack was created due to a massive amount of requests for a beginning modder to get started in the modding space. Our team has put together one of the most popular combinations of parts to get you started on your modding journey. The case back with this set is for the 7s26 oem movement with black spacer if you are fitting an NH movement we can swap out the back for the CT231 simply add a note to your order. Happy Modding #seikomodsfamily!
- Inclusions:
- CT700 Drilled Lugs with CE Bezel +spring (fitted)
- CT208 crown + stem
- Crystal gasket
- CT200 case back
- Case back gasket
- Spring bars
Complete your build!
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Seiko EXP Case Set
43.46$ Add to cartSeiko EXP Case Set
- Material – HQ Stainless Steel 316L surgical grade
- Description – Our in-house developed, manufactured and fully tested 37mm EXP case set. Integral brushed chapter ring. Screw Down 100M Crown. HQ Swiss Flat Sapphire Crystal expertly fitted by our in-house watchmaker clear with no AR – slightly raised with top bevel – 20mm lugs compatible with SKX013 bracelets. Lugs not drilled right through exactly. Crown at 3. Slim NH Case Back. NH movement compatibility ex. NH35/36/38. Case tested to 100M with no failures.
- Dimensions – Diameter without crown 37mm, with crown 40mm – Total Thickness (case back to top of crystal) @12.25mm – Lugs 20mm – L2L 43mm – Crown diameter 6mm
- Finish – Full Polish – Linear Brush on the flat section of Case Back
43.46$ -

Seiko Marine Master 300 “MM300” SKX007 Conversion Case
Read moreSeiko Marine Master 300 “MM300” SKX007 Conversion Case
- The famous limited edition CT710 Monobloc case was an iconic case in the seiko modding space. Since its retirement in 2022, we’ve been working on a new version with a screw down case back and takes our MM300 Bracelets and bracelets. We are excited to release this V2 MM300 SKX007 conversion case into the modding space. Happy Modding!
- Dimensions:
- Lug-to-lug: 47.9mm
- Thickness (w/o case back): 9.5mm
- Width: 42.2mm
- Lug Width: 20mm
- Material – HQ Stainless Steel 316L surgical grade.
- Finish: Polished on sides and brushed on top of case body.
- Included FREE with every case – Crystal Gasket, Case Back Gasket, 2 x 20mm Fat Spring Bars, CT208 crown, CT502 stem.
- Water Resistance
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Seiko SKX013 0030 Crown At 4 Case – No Crown Guards
Read moreSeiko SKX013 0030 Crown At 4 Case – No Crown Guards
- Material – HQ Stainless Steel 316L surgical grade
- Description – SKX013/15 Crystaltimes Crown at 4 NO CROWN GUARD CASE – Drilled Lugs
- Included FREE with every case – Crystal Gasket – Case Back Gasket – 2 x 20mm Fat Spring Bars
- Finish – High Polish/Brushed
- Water Resistance
- Suitability
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SRP Turtle Conversion Case for SKX007 Gunmetal Set
Read moreSRP Turtle Conversion Case for SKX007 Gunmetal Set
- Description – Convert your SKX007 0020 cased 200M Divers Watch to a FULL SIZE SRP Turtle with this superb unique case designed by seikomods.com. Full size SRP Turtle look case 22mm lug width – aftermarket bracelets fit. Fully tested to 200M PLUS. MOST SKX007 parts fit – Drilled Through Lugs as original oem SRP Turtle
- Material – HQ Stainless Steel 316L surgical grade
- Water Resistance
- Finish– Gunmetal