Our Guide to Modding A Seiko 5

Our Guide to Modding A Seiko 5 

Many watch enthusiasts turn to watch modification to create a completely customized piece. With just a few mod parts purchased from a booming aftermarket, you can have a completely unique watch that perfectly suits your aesthetic.

Watch modding lets you break down, rebuild, and construct a watch using parts that are perfect for your specific needs. From the strap to the dials, hands, and even the crystals, you can modify your watch as much as you want.

The Best Watch For Modding

The most popular brand in the watch modding space is Seiko. The Seiko Model 5 has been in production since the 1960s, and its continued popularity so many decades later is partly because it is one of the most mod-friendly watches ever made. High-quality Seiko 5 mod parts are widely available and very affordable, so it’s become easier than ever to build the watch of your dreams.

Most watches can be modified, but the Seiko 5 collection has a robust build that makes it perfect even for modding beginners. The mod parts won’t cost you an arm and a leg, either. With so many variations available for the different elements, and many of them easily interchangeable, you can achieve an almost unlimited number of looks.

Step-by-Step Guide To Modding A Seiko 5

Watch modding is a delicate process, and you need to be very well prepared for it. These tools and a pair of steady hands make the modding adventure incredibly easy. To begin, you’ll need the following:

Clean workspace


Gorilla tape




Case back remover

Hand remover

Hand setter

Crystal presser

Dust blower

Once you have all your tools gathered in your workspace, you can begin.

Step 1: Wash Your Hands

You don’t want even a single speck of dust to get into your watch, so you should keep your hands and your workspace as clean as possible. A good pair of gloves or small plastic cots on your fingers will help ensure that no dirt, dust, oil, or any other particles get on your watch.

Step 2: The Case

Remove the watch strap and set it aside. Use a case back remover to carefully remove the case and expose the watch movement.

Step 3: The Crown And Stem

Use a toothpick or a pair of carbon tweezers to remove the crown and stem. Then, you can remove the entire movement out of the watch case.

Step 4: The Hands

Make sure the hands are at 12 o’clock, and use a hand remover to pry them off in one movement.

Step 5: The Dial

You can use a screwdriver to remove the dial. Align the new dial and press firmly to set. At this point, you can start replacing the watch components in backward order.

Step 6: Replace The Hands, Stem, Crown, And Movement

When applying the hands, begin with the hour hand and set it to 12 o’clock. Press and hold. Then, apply the minute hand, again setting it to 12 o’clock. This ensures they will move uniformly. Push in the crown, stem, and movement. Let the watch run so you can check if the hands move correctly.

Step 7: The Crystal

Use a crystal removal tool to punch out the crystal. Use a dust blower to ensure that the watch case is completely clean. Apply your new crystal using very gentle pressure onto the case. Connect the new strap, and you’re done!


Watch modding is a fun, simple way to create a completely customized watch of your dreams. The Seiko 5 series makes this incredibly easy—mod parts are widely available, affordable, and you can mix and match as many element variations as you want. This step-by-step guide will help you through your watch modding journey!

SeikoMods is your #1 source for Seiko mod parts in the country. We have the largest selection of mod parts, stocked and ready to ship wherever you are. Our goal is to be a place where watch enthusiasts can get everything they need. Check out our store and build your dream mod today!

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