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Shop Seiko Mod Parts at Crystaltimes USA! Crystaltimes is generally known for their Sapphire Crystals, but has ventured into many watch mod part categories including Cases, Bezels, Bezel Inserts, Movements, Crowns, Chapter Rings, Case backs, Gaskets, Dials, and more. Here at Crystaltimes we are enabling Seiko modders to have a whole suite of Seiko Mod Parts to build the dream mod! Our goal is to create a one-stop-shop for everything watch modding. From SKX to SRP, we’ve got you covered! Browse the items below to find a suitable match to your watch model. Can’t find your specs? Write us an email and we will add it to our product line!

Showing 1–12 of 114 results

  • CT037

    Material – Sapphire Crystal

    Suitable for – SKX007 SKX009 SKX011 SKX171 SKX173 SKX175 SKX401K SKXA35

    Type/Design3 Double Dome Types available:

    CT037Double Dome (Domed Top – Domed Underside) with traditional Seiko “tool look” heavy top edge bevel. Suits the standard oem and aftermarket flat inserts.

    CT037CIS – Specially developed to solve the unsightly step problem for the ceramic sloping/thicker sub type bezel inserts***. Double Dome (Domed Top – Domed Underside) without a large top edge bevel and a stepped edge design to ensure a smoother looking fit with the sloping ceramic bezel inserts.

    CT037FDouble Dome. A slightly higher (0.6mm) version of the standard CT037 but with a stepped edge design and NO heavy top edge bevel resulting in a better looking/smoother fit for those who dislike the large Seiko Divers traditional big top edge bevel and resultant gap – suitable for the oem and aftermarket (metal or ceramic)  flat bezel inserts.

    Ref dimensions:

    CT037 – Dia 31.5mm Total thickness/height 4.7mm

    CT037CIS – Dia 31.5mm Total thickness/height 5.5mm

    CT037F – Dia 31.5mm Total thickness/height 5.3mm

    AR* Available: Blue AR, Purple AR, Red AR, Green AR, Clear AR** or No AR.

    Additional info below in product description

    $41.95$54.95 Select options
  • CT204

    Material – HQ Stainless Steel 316L surgical grade – This is Not Plastic unlike many others available on the market today – machined from a single piece of 316L Stainless Steel.

    Type/Design – Chapter Ring with rear pin location (as oem)

    6 Finish options – Super High Polish, Rotary Brushed, Black (Rotary Brushed + Black PVD) Gold Plated*, Rose Gold Plated* Brushed with laser markers and Black PVD STEALTH.

    Laser Etch option – Laser Etched Minute Markers available on polished and brushed SS versions plus STEALTH version

    Ref dimensions – As per OEM Plastic Chapter ring.

    Suitable for – 200M 0020 case type SKX007 SKX009 SKX011 SKX171 SKX173 SKX175 SKXA35 SKX401K

    Fitting – Direct fit for original part no modification required

    Additional info below in product description

    $17.95$23.95 Select options
  • CT202

    Material – Stainless Steel 316L surgical grade HQ Divers Bezel.

    Suitable for – 200M 0020 case type SKX007 SKX009 SKX011 SKX171 SKX173 SKX175 SKXA35 SKX401K

    2 Types/Designs:

    1) CT202CE – Classic Coin Edge Bezel– Vintage 6105 150M style.

    2) CT202RX – Sub homage style Bezel.

    3 Finishes – High Polish, Sand Blasted*, Sand Blasted Black PVD.

    Fitting – Direct replacement for OEM bezel no mods required. The bezel on some cases will be a little tight and pressing on evenly by hand may not possible in these instances a Crystal Press should be used to apply an even high force to snap the bezel on.

    BONUS Bezel Gasket – New gasket supplied already fitted – We recommend adding a little grease to aid a smooth action.

    Please note You may find they can be tight we recommend the use of a crystal press to ensure an even high force when snapping the bezel on – A distinct snap sound will be heard as the bezel rides over the snap and sits down in the correct position.

    TIP – We strongly recommend that if you are considering to purchase a YM sloping ceramic insert to fit to your bezel rather than purchasing the insert and crystal individually that you take a look at our crystal and insert combo CT119 – The CT119 has a custom sapphire designed specifically to match the CT606 insert perfect – no gap – seamless fit – no need to mix and match from different sources – avoid potential sadness – we have done the work for you!

    Additional info below in product description

    $34.95$39.95 Select options
  • CT039

    Material – Sapphire Crystal

    Type/Design – Double dome (Domed top – Domed underside)

    Standard AR* coating options – Blue, Purple, Green, Clear AR,** No AR

    Ref dimensions – Dia 31mm – Thickness 5.0mm – Edge Height 2.7mm – Dome Height 2.3mm

    Suitable for – Seiko – Sumo Shogun Samurai Sea Urchin Map Meter Baby Tuna Landshark Compass Gadget Orient – Mako Ray 1+2+USA (not XL).

    SEA URCHIN – SNZF15 SNZF17 SNZF22 (Gold)

    SUMO – SBDC001 SBDC003 SBDC005 SBDC027 SBDC031 SBDC033 SBDC049

    SHOGUN – SBDC007 SBDC029

    BABY TUNA – SRP637K1 SRP639K1 SRP641K1 SRP653K1 SRP655K1 SRPA83 SRPA82K1

    OLD SAMURAI* – SBDA001 SBDA003 SBDA005 SNM009 SNM011 SNM017 *New model Samurai takes a 32mm crystal CT072 CT096 CT110 are suitable.

    ORIENT KAMASU – RA-AA0001B19A / RA-AA0002L19A / RA-AA0003R19A / RA-AA0004E19A / RA-AA0005B19A / RA-AA0006L19A / RA-AA0007A09A

    ORIENT MAKO RAY 1+2+USA – FAA02001B9 FAA02002D9 FAA02004B9 FAA02005D9 FAA02007B9 FAA02008D9 FEM6500FB9 FEM65001BW FEM65001MW FEM56002DW FEM65006DW FEM65007B9 SAA0200AB9 SAA02009D3 SAA02001B3 FEM65008B9 FEM6500AM9 SAA0200BD9 SAA0200CW9 FAA02003B9 (RAY RAVEN) FEM6500FB9 FEM6500AM9 FEM6500HD9 FEM6500GW9 CEM65004M CEM65003DW EM6500BB CEM65004B CEM65009D CEM65001B EM65001M

    SEIKO ATLAS LANDSHARK MAP METER

    7S36-01E0 SKZ207J1 7S36-01E0 SKZ207K1

    7S36-01E0 SKZ207KC 7S36-01E0 SKZ209J1

    7S36-01E0 SKZ209K1 7S36-01E0 SKZ211J1

    7S36-01E0 SKZ211K1 7S36-01H0 SKZ219K1

    7S36-02K0 SKZ229

    Additional info below in product description

    $44.95$54.95 Select options
  • Sale!

    CT208

    Material – HQ Stainless Steel 316L surgical grade

    Options – High Polish with and without snake laser design.

    Suitable for200M Case Ref 7S26-0020 – SKX007 SKX009 SKX011 SKX171 SKX173 SKX175 SKX401K SKXA35 – All SUMO** variants – SPB051** SPB053**

    ** Choose DIY stem option only on these models

    Description – Stainless Steel 316L 3 Gasket Hi-Performance threaded Crown – A high quality high performance in house engineered/designed and fully tested Crown – Snake laser option – complete with stem

    Stem Details – Stem supplied in either DIY (cut and fit yourself) or cut and already fitted/cemented. Designed for use in SKX007 and variants (0020case) and for the OLD and NEW Samurai as well as the SUMO* and the 62Mas modern interpretation SPB051* SPB053*. The stem supplied will work with the standard oem 7S26 movement as well as NH35 NH36 NE15 4R36 6R15 movements.

    *Purchase DIY version only if you are purchasing for these models

    If you are simply upgrading to our 3G Crown on your SKX007 and not doing a movement change at this time the stem supplied with our CT208 crown will not need to be changed if you upgrade later from your standard fitment 7S26 movement to the NH35 NH36 NE15 4R35 4R36 or 6R15 the stem is fully compatible.

     2 versions available

    1. Hi Polish
    2. Hi Polish with Snake Laser etch

    Stem Options – DIY option (full length stem) OR Cut and fitted option suitable for SKX007 0020 case

    Stem – Suitable for NH35 NH36 NE15 4R35 4R36 6R15 movements and the standard SKX007 7S26 movements

    Performance – 200M Plus**

    **Reference Info Only – Tested to 500M during extensive development and wet testing with no failures observed – oem crown is a basic minimal single gasket design

    Crown Head Ref dimensions – Diameter 7mm x 4.9mm

    Samurai – All Samurai models old and new versions SBDA001 SBDA003 SBDA005 SNM009 SNM011 SNM017 SRPB009 SRPB49 SRPB51 SRPB53 SRPB55 SRPC93

    Fitting – Direct fit for original part – no case modification required – stem will need to be cut and cemented if you choose the DIY option – the cut and fitted (plug and play) option is very popular

    Additional info in product description below

    $23.95$29.95 Select options
  • seiko 5 sapphire crystal and mod parts

    CT063

    Material – Sapphire crystal

    Type/Design – Double dome (Domed Top – Domed Underside)

    AR* coating options – Blue, Purple, Green, Red, Clear AR** and No AR.

    Ref dimensions

    Dia 30mm Thickness 2.5mm – 1.5mm Dome – Edge 1.0mm

    Suitable for

    Seiko 5 and 5 Sports and Chronographs. SNK SNKK (Speedracer) SNKF SNKH SNKL15 SNKL17 SNKL19 SNKL23 SNKL28 SNKK25 SNKK27 SNKK29 SNK375 SNK369 SNK371 SNK373 SNKH03. SNKH09 SNKH05 SNKH07 SNKF55 SNKF59 SNKF57 SNKH47 SNKK27. SNKE49 SNKE51 SNKE53 SNKE54 SNKE56 SNKE51K1. Military style – SNK803 SNK805 SNK807 SNK809 SNKM95. Chronographs – 7A38-6080 7A38-7010 7A38-701B 7A28-7120. SNKL – Case ref 7S26-03V0. PLUS, literally 100’s of other SEIKO 5 models with a 30mm crystal.

    29mm version Go to CT083 if you require a 29mm version of this DD Sapphire

    Additional info below in product description

    $29.95$39.95 Select options
  • CT700

    Material – HQ Stainless Steel 316L surgical grade

    Description – The Famous and the very first of its kind Crystaltimes Replacement Case Body – Suitable for replacement of the SKX007 0020 200M Divers case -With and without Drilled Through Lugs* – Black case option also available

    *Great for easy strap and bracelet change – reducing the risk of marking/damaging your case

    Suitability

    Replacement for SKX007 0020 CASE

    Included FREE with every caseCrystal GasketCase Back Gasket2 x 22mm Fat Spring Bars

    2 Finishes

    1) High Polish/Brushed

    2) Black IP (Ionic Plating)

    Information – Case Body with and without Drilled Lugs. Polished/Brushed and Black available with and without drilled through lugs. Suitable as the perfect replacement for a damaged SKX007 0020 case. All oem parts will fit this case. This is our tribute to the classic oem case. It is NOT and was never intended to be a 100% exact copy of the oem case e.g. to allow the fully drilled lugs to look sweet the outer profile of the lugs is made a little meatier. We believe we achieved a very nice balance between the oem look and our case. All oem parts are compatible and will fit this replacement case incl the oem Jubilee Bracelet. Takes fat 2.5mm spring bars.

    NOTE – Aftermarket bracelets with SEL may in some rare instances require a slight adjustment on the SEL as they do even with the oem case in some instances

    Water Resistance – As oem*

    *This case was tested to 350M during development and subsequent testing of actual production cases – no failures were recorded.

    Additional info below in product description

    Videos:

    Superb look at the CT700 case and full build by Lume Shot!

    CT700 Case YouTube reveal Performed By Random Rob!

    CT700 Black Case Reveal by TheTimeKeeper!

    Instagram Video By @Zwei_1383

    $79.95$89.95 Select options
  • CT072

    Material – Sapphire Crystal

    Type/Design – Double dome (Domed Top – Domed underside).

    AR* coating options – blue, purple, green, clear** and No AR

    Suitable forNew Prospex “Turtle” 200M SRP773 SRP775 SRP777 SRP779 SRP787 SRP789 SRPC44 SRPC23K1 SRPC25K1 SRPC49K1 SRPC91 SRPC95 “PADI” Versions – SRPA21 SUN065 – Blue Lagoon SRPB09 SRPB11 – Dawn Grey SRPD01K1 – Save The Turtle SBDY021

    NEW 62MAS – SPB051 SPB053

    FLIGHTMASTER – SNA411 SNA411P1 SNA413P1 SNA414P1

    SOLAR 200M – SBDJ009 SBDJ011 SBDJ013 SBDJ015

    PADI SOLAR – SNE435 SNE435P1 SNE493P1

    SAMURAI – SRPB49 – SRPB53 – SRPB55 – SRPB09 Blue Lagoon – SRPB51 Black – SRPC93 STO – SRPD03K1 Dawn Grey

    KINETIC TUNA – SUN019 SUN021 SUN023 SUN065

    DAYTONA – SNA225

    Ref dimensions – Dia 32mm Total Thickness 6.0mm – Dome height 3mm – Edge 2.8mm

    Additional info below in product description

    $44.95$59.95 Select options
  • CT056

    Material – Sapphire Crystal

    Type/Design – Double Dome (Domed Top Domed Underside)

    Suitable forSeiko SKX031 SKX033 SKX779 SKX781 7S26-0350/1 SRP307K1 SRP309K1 SRP311K1 SRP313K1 SRP315K1 SKX031 SKX033 SZEN002 SZEN006 SZEN007 SZEN009 SZEN010. Seiko Mini Baby Turtle* – SRPC35K1 SRPC37K1 SRPC39K1 SRPC41K1 *No cyclops date magnifier. Invicta 200M – 8926OB 30mm sapphire.

    AR* coating options – blue, purple, green, No AR and Clear AR**

    Ref dimensions – Dia 30mm Thickness 4.3mm Edge 2.3mm – Dome 2mm

    Important Note – If you have an 8926 Invicta with 29.5mm sapphire go to item number CT091 which we produced for that version

    Additional info below in product description

    $39.95$49.95 Select options
  • CT057

    Material – Sapphire Crystal

    Type/Design – Double Dome (Domed Top – Domed underside)

    AR* coating options – blue, purple, green, clear** and No AR.

    Ref dimensions – Dia 32mm Total Thickness 4.5mm – Dome height 1.7mm – Edge 2.8mm

    Suitable forNew Prospex “Turtle” 200M SRP773 SRP775 SRP777 SRP779 SRP787 SRP789 SRPC44 SRPC23K1 SRPC25K1 SRPC49K1 SRPC91 SRPC95 “PADI” Versions – SRPA21 SUN065 – Blue Lagoon SRPB09 SRPB11 – Dawn Grey SRPD01K1 – Save The Turtle SBDY021

    NEW 62MAS – SPB051 SPB053

    FLIGHTMASTER – SNA411 SNA411P1 SNA413P1 SNA414P1

    SOLAR 200M – SBDJ009 SBDJ011 SBDJ013 SBDJ015

    PADI SOLAR – SNE435 SNE435P1 SNE493P1

    SAMURAI – SRPB09 Blue Lagoon – SRPB51 Black – SRPC93 STO – SRPD03K1 Dawn Grey

    KINETIC TUNA – SUN019 SUN021 SUN023 SUN065

    DAYTONA – SNA225

    Additional info below in product description

    $44.95$54.95 Select options
  • CT701

    CT701 is sold out, and no longer available. There may be a few remaining on our international website. Click Here to go there now!

    Material – Case + Back HQ Stainless Steel 316L surgical grade

    LIMITED PRODUCTION – 300 pcs individually laser numbered – we 100% guarantee this case will not be made again

    Description – Crystaltimes in-house designed chunky “tool look” DIVERS crown at 3 case complete with case back. Drilled through lugs* and He** valve at 9. Tested to 350M with standard oem 2.8mm crystal will certainly be good for much more with a thicker 5mm crystal and our 3G Crown fitted – currently we are testing up to 500M with a high degree of confidence. Compatible with SKX007 parts***

    Dimensions – The same dimensions as the SKX007 0020 case – 22mm lug width, lug to lug dimension, thickness, width, height all as SKX007. It looks a little larger than the SKX007 as we went for the flat sided design and moving the crown to the 3 position but in actuality the dimensions are pretty much the same as the classic SKX007 0020 case

    INFO – Crown stem length same as SKX007 OEM and out CT700 case so if you have purchased a crown from us CT208 CT209 CT218 CT228 with cut and fitted stem it will fit straight in to the CT701

    * Drilled Through Lugs for easy bracelet and strap changes reducing the risk of scratching/damaging your case

    ** Fully Functional Helium Gas Release Valve at 9

    *** We can guarantee 100% our CT manufactured parts and Seiko OEM SKX007 parts will fit. Most reputable aftermarket manufacturers parts will also be ok, but we cannot 100% guarantee this as in some instance’s tolerance build up/variation exists that can be problematic – bezels being a particular area that can be tricky. We now have 4 different SKX007 bezels in the hope that you may consider purchasing your bezel from us

    Designed especially for the NH35/36 NE15 crown at 3 movements enabling them to be dropped straight in, no need to change the grey movement holder. A special case back is supplied with built in spacer – needed when using the NH35/36 with standard grey movement holder. Should you choose to use the thicker black movement holder the oem case back or our CT200 case back would need to be used

    Included FREE with every caseCrystal GasketCase Back Gasket2 x 22mm Fat Spring Bars

    Finish – High Polish flat sides and underside – Brushed Top

    Information – Case Body + Back – Drilled Lugs. All oem parts are compatible and will fit this replacement case incl the oem Jubilee Bracelet. Takes fat 2.5mm spring bars.

    NOTE – Aftermarket bracelets with SEL may in some rare instances require a slight adjustment on the SEL as they do even with the oem case in some instances

    Water Resistance – As oem*

    *This case was tested to 350M during development and subsequent testing of actual production cases – no failures were recorded.

    Suitability

    A great basis for a custom build or as a replacement for SKX007 0020 case

    Additional info – Ideal for replacing a badly damaged case or building a complete custom 1 off mod without having to buy a complete watch and ending up only using the case!

    Case Number Assignment:

    We will assign case numbers based on the lowest available at time of purchase. Case numbers are assigned on a first come first serve basis.

    Videos:

    Instagram Video

    Select options
  • CT500 – NH36 Movement

    Description – Brand new and tested 100% genuine Seiko Instruments NH36A 24J SII crown at 3 movement incl full length stem complete with fitted temporary setting crown/stem – unregulated*

    We recommend you take a look at our regulated* movement option at an additional 14.95 usd – this will ensure a good level of accuracy for your build.

    * Factory movements are supplied unregulated (timing accuracy not finely adjusted to the best achievable) We offer a regulated option to swiss standard of less than 10 seconds a day for that type of movement – in most instances we achieve much better than that!

    Suitable for – Watch modding 7S26 upgrade.

    Ref dimensions – OD 27.4mm Casing Dia 29.36mm (with dial spacer).

    INFO – You are purchasing a complete movement please ensure you are fully aware of the work required and parts needed to complete the build. If you are unsure and not undertaken this before, please do appropriate research before purchase. The forums and YouTube are an excellent resource. The buyer is responsible for the correct and careful fitting of the dial, hands and regulation. Unfortunately, a number of not so careful DIY modders have totally scrapped movements during this process. Crystaltimes is not responsible for any damage to movements during the fitting process. Check our NOOB CENTRE for an excellent tutorial video link on this subject.

    Type/Design/Spec: NH36A Automatic. White/Black day/date at 3. 21600 BPH. 24 Jewels Hacking Hand-wind. Power Reserve 41hrs. Complete with stem. Hand sizes H/M/S 150/89/21. Ligne/mm size 12/26.00mm. Height 5.32mm. Height with cannon pinion 7.55mm.

    Additional info below in product description

    $51.95$66.90 Select options