NEW MODDERS

WELCOME 👋

Welcome to the #seikomodsfamily! On this page you will find everything you need to know about watch modding: Parts Overview, Tools Overview, How To's, Build Checklist and much more. Lets dive in!

PARTS OVERVIEW

Learn About Parts

TOOLS OVERVIEW

What Tools Do I Need?

BUILD CHECKLIST

What Parts Do I Need?

TUTORIALS

INSPIRATION

TROUBLESHOOTING

SUPPORT

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PARTS OVERVIEW

Visual overview of watch parts ⚙️

TOOLS OVERVIEW

TOOLS NEEDED TO GET STARTED ⚙️

1

Purchase one of the basic cheap tool sets widely available in the market. This imho is the best way to start, you will find out quickly if this is a hobby you are capable of, interested in or not. Some will drop out at this stage, so I don’t want you to unnecessarily waste money on what can be pretty expensive tools. If you find it’s for you then can gradually purchase much better tools over a period of a few months/years. It’s a great hobby/pastime and I hope you can experience the pleasure and joy I have. The majority of my top modding associates started in this basic way, they went on to become pretty much expert in what they do with a top spec workbench.

2

You will need a Crystal Press and Blower. Again the basic ones will do at this stage.

3

Start with some basic jobs first to build your confidence. Changing a strap or bracelet, opening the case back, adjusting a bracelet. Then progressing steadily to jobs like bezel replacement/removal, bezel insert change, crystal/glass change. Rushing leads to problems and potential damage to your watch so take your time do research and check the many very helpful videos online.

4

Crystal, Hands, Dial and Chapter Ring replacement will require removal of the watch mechanism/movement this personally was an area I struggled with in my noob days when videos were not around. Removing the crown/stem was a testing experience but nowadays this info is widely available literally in seconds. Again do your research check the many vids available. Additional tools are required for hands removal and setting.

5

When you progress to day/date wheel replacement and movement repair that’s a good moment to buy a good screwdriver set and good set of tweezers. Such sets will stand you in good stead for many years to come.

Please do not hesitate to contact us we will be very happy to help you. The noobs of today are our valued customers of tomorrow. We want to give you the best chance possible in joining the watch modding family it can be a very rewarding experience.

Send us a message >> info@seikomods.com

choose your first watch toolkit

BUILD CHECKLIST

PARTS NEEDED FOR A COMPLETE BUILD ⌚

SKX007 Build

Below you'll find a full list of parts needed to build an SKX007:

BUILD AN SKX007

SKX013 Build

Below you'll find a full list of parts needed to build an SKX013:

BUILD AN SKX013

SRP Turtle Build

Below you'll find a full list of parts needed to build an SRP Turtle:

BUILD AN SRP Turtle

TUTORIALS

lets do this! 📚

MOVEMENT SELECTION

1.) Dial Selection

No Date Dial - NH35 or NH36 can be used

Date and Day/Date* Dial - NH35 or NH36 can be used

2.) Case Selection

3 o'clock crown case - NH35 NH35 fully compatible

4 o'clock crown case, NH35 and NH36 can be used. However these are crown at 3 movements.

*If you are using the NH36 day/date movement the DAY wheel will unfortunately be misaligned when using your standard SKX007 Dial. The NH35 NH36 DATE wheel is fine. Only the DAY wheel from the NH36 will be misaligned.

*To resolve this day wheel issue, you'll have to acquire a day wheel from a crown at 4 SKX007 7S26 movement and the black movement holder. The black movement holder will allow you to use your original SKX007 dial with crown at 4 feet positioning should you wish.

Please don’t hesitate to contact us if you require any assistance

CASE SELECTION

What is your vision? What size case do you want? Do you want the crown at 3 or 4 o'clock? These are the questions you'll be asking while deciding on the right case to go with for you. Based on your answers to these questions it will enable you to make a decision on the rest of your build. seikomods produces a wide variety of watch cases to base your mods around.

Shop your style and size case that you want and then based on selection use the Build Checklist to complete your watch! Each case product page will highlight what parts fit that particula

If you ever have any questions drop us a message to sales@usa.seikomods.net

crystal info

An acrylic watch crystal is hardened plastic, which has the advantage of being resistant to shattering, but can be scratched fairly easily. Fortunately, scratches can be easily removed from acrylic.

A mineral glass watch crystal is hardened glass (Seiko name – Hardlex), which is much more scratch resistant than acrylic, but significantly less than sapphire. Mineral crystals are also somewhat better at shatter resistance compared with sapphire.

A sapphire crystal is made of synthetic sapphire, which is a transparent form of corundum, or aluminum oxide (Al2O3). It is extremely hard (Moh’s scale 9 – Diamond is 10), and will resist scratching by most substances short of diamonds. Premium watches generally use sapphire crystal (e.g. Rolex Omega AP Panerai Bremont Hublot GP Cartier).

seikomods produces 5 designs of sapphire crystal:

Flat (both sides)
Single Dome – Domed top surface flat underside.
Double Dome – Domed top and underside surfaces.
Bubble Dome – A high double domed bubble like design.
Top Hat - A flat vintage top hat style design.

AR (anti-reflective) coating is a free option that is available and very popular. It is available in a choice of standard colors/tints with blue being by far the most popular choice. As well as having anti-reflective properties a colored AR coating is very popular with watch modders by enhancing the finished creation. The colored tint of the AR coating will only reveal itself in certain light conditions/angles. The coating is applied on the underside only. There is nothing quite like double domed sapphire crystal with AR coating to lift what is a great mod to a fantastic one. Currently out of 100 sapphires sold 95 will be with blue AR. Sapphires with no AR coating are always available these are particularly popular for the classic vintage watches.

TECHNICAL INFORMATION

An AR coating reduces light reflection at a glass surface from approximately 4.1% to anywhere from 2% to ~0.1% over the visible wavelength range (400nm-700nm) depending on how well it is made. So technically a watch with no coatings should reflect ~8% of the incoming light and the one with the single side coating should reflect less; somewhere in the 4-6% range. Probably closer to 4.5% as a <0.5% spec is common.

water resistance

We understand how important water resistance is, and is actually the main reason we got into this space 10+ years ago. We wanted to increase the level of water resistance in Seiko dive watches with new crown, case back and bezel development. All of our products are spec'd to OEM standards (they actually perform better). Have the utmost confidence that when using seikomods parts it will not affect your water resistance - if anything it will improve the performance. All of our parts that are water intrusion facing (cases, bezels, case backs, crystals crown and gaskets) are tested at or above their posted (on product page) water resistance rating.

we wrote the book!

skx007 builds

For those building an SKX007: we put together a full break down on how to mod an SKX007. Everything from tools to detailed tutorials on all aspects of modding your SKX007. This is the most widely available build platform on the market, and we wrote the book on it!

how to mod the skx007

inspiration ✨

CUSTOMER GALLERY

EXPLORE

TROUBLESHOOTING

COMMON TRICKS & TIPS

As a general rule a press is always necessary to press on the bezel. With that said, there are some things that will aid in the action of the bezel outside of it having some tolerance issue which we can explore once these tips have been performed:

Ensure crystal is perfectly level and seated in case (otherwise the crystal edge can rub against the inside diameter of the bezel).
Apply Silicone grease to the bezel gasket before pressing it on to aid in the action and playability of the gasket.
Apply Silicone grease to the tips of the click spring fingers to aid in the action of the bezel.
Ensure the bezel gasket is fully seated inside the bezel so it doesn't get trapped when the bezel gets pressed on to the case.
Ensure you are using a bezel insert that clears the outside diameter of the crystal edge so they do not rub together.

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