Seiko Mod

Discover our Seiko mod custom watches assembled in our french workshop.

Seiko Mod There are 50 products.

Pepsi GMT - Seiko Mods

CASE: Stainless Steel 316L Diameter: 40mm Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug...

€369.00
  • -€49.00
  • On sale!
  • -€49.00

Batman GMT - Seiko Mod

CASE: Stainless Steel 316L Diameter: 40mm  Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug...

€418.00 €369.00

Coke GMT - Seiko Mods

CASE: Stainless Steel 316L Diameter: 40mm Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug...

€369.00

Sprite GMT - Seiko Mods

CASE: Stainless Steel 316L Diameter: 40mm Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug...

€369.00

Wayn GMT - Seiko Mods

CASE: Stainless Steel 316L Diameter: 40mm Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug...

€369.00

Rose Gold Dayto - Seiko Mods

CASE : Diameter: 39mm Thickness: 13mm Lug width: 20mm Case: 316L stainless steel Case back: Stainless steel Crown: 316L stainless steel, screw-down STRAP: 316L stainless steel Strap width: 20mm...

€199.00

Orange KX - Seiko Mods

CASE : Diameter: 42mm Thickness: 16mm (with case back and double domed sapphire) Horn to horn: 46mm Lug width: 22mm Case: Stainless Steel 316L, Black PVD high quality, very resistant Caseback:...

€649.00

Flash blue KX - Seiko Mods

CASE : Diameter: 42mm Thickness: 16mm (with case back and double domed sapphire) Horn to horn: 46mm Lug width: 22mm Case: Stainless Steel 316L, Black PVD high quality, very resistant Caseback:...

€649.00

Rainbow KX Master Rose Gold - Seiko Mod

CASE : Diameter: 42mm Thickness: 16mm (with case back and double domed sapphire) Horn to horn: 46mm Lug width: 22mm Case: Stainless Steel 316L, Rose gold PVD high quality, very resistant Caseback:...

€799.00

DJ Sunburst Grey SPB143 - Seiko Mods

CASE: 904L stainless steel Diameter: 39mm Lug width: 21mm Case back: 904L stainless steel Crown: 904L stainless Steel, screwed STRAP : 904L stainless steel Lug distance: 21mm Strap length: From...

€549.00

Hulk - Seiko Mod

CASE : Stainless Steel 316L Diameter: 40mm  Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L...

€299.00

Open Heart Nautilus - Seiko Mods

CASE: Stainless Steel 316L Diameter: 42mm (crown guards and crown included) Diameter: 39,5mm (without crown guards) Thickness: 11,5mm Lug width: 13mm Caseback: Clear sapphire Crown: Premium 316L...

€349.00

Rainbow Black KX 3 O'clock - Seiko Mods

CASE: Diameter: 42 mm Thickness: 16mm Horn to horn: 46mm Lug width: 22mm Case : 316 L stainless steel, premium PVD mat black Case back: Black PVD with clear Saphire crystal Crown: 316L Stainless...

€690.00

KX Rose Gold Blackout

CASE : 316L stainless steel, high-quality rose gold PVD, highly resistant Diameter: 42mm Thickness: 16mm (with case back and double domed sapphire) Horn to horn: 46mm Lug width: 22mm Caseback:...

€579.00

Rootbeer Dual Time - Seiko Mod

CASE: Stainless Steel 316L, with PVD rose gold  Diameter: 40mm  Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel with PVD rose gold,...

€369.00

Rose Gold Beer Blackout - Seiko Mod

CASE: Stainless Steel 316L, with PVD rose gold  Diameter: 40mm  Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel with PVD rose gold,...

€369.00

Arabic Ice Just - Seiko Mod

CASE: Stainless Steel 316L Diameter: 42,5mm  Horn to horn: 46mm Lug width: 22mm Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug distance: 22mm to...

€509.00

Arabic Orange Blackout - Seiko Mod

CASE: Diameter: 40,5mm  Thickness: 14,4mm Horn to horn: 47mm Lug width: 22mm Case : 316 L stainless steel, premium PVD mat black Case back: Black PVD with clear Saphire crystal Crown: 316L...

€590.00

Seikonaut Orange Waffle - Seiko Mod

CASE: Stainless Steel 316L Diameter: 42.5mm (crown guards included) Diameter: 38mm (without crown guards) Thickness: 12mm Horn to horn: 47mm Lug width: 20mm Caseback: Sapphire Crown: 316L...

€649.00
  • -€150.00
  • -€150.00

Seikonaut PADI Deep Sea - Seiko Mod

CASE: Stainless Steel 316L Diameter: 44mm (crown guards and crown included) Diameter: 38mm (without crown guards) Thickness: 11,8mm Horn to horn: 44,8mm Lug width: 12mm Caseback: Clear sapphire...

€649.00 €499.00

Premium GMT Batman 42mm - Seiko Mod

CASE: Premium Stainless Steel 316L Diameter: 42mm  Thickness: 13mm Horn to horn: 47mm Lug width: 22mm Case back: Sapphir crystal, Stainless steel Crown: 316L Stainless Steel, Screwed, S logo...

€549.00

Black Master Gold - Seiko Mod

CASE : Diameter: 42mm Thickness: 16mm (with case back and double domed sapphire) Horn to horn: 46mm Lug width: 22mm Case: Stainless Steel 316L, Black PVD high quality, very resistant Caseback:...

€649.00

Lefty Sub Skeleton - Seiko Mod

CASE: Stainless Steel 316L Diameter: 40mm  Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: 316 L Stainless steel or Clear Sapphire (Choice to be specified when ordering) Crown: 316L...

€450.00

YM 5 Lunar - Seiko Mod

CASE: Diameter: 41mm  Thickness: 14,4mm Horn to horn: 47mm Lug width: 22mm Case : Premium 316 L stainless steel  Case back: Clear, saphir, ultra slim Crown: Premium 316L Stainless Steel , Screwed...

€649.00

Orange Sub Master - Seiko Mod

CASE: Diameter: 41mm  Thickness: 14,4mm Horn to horn: 47mm Lug width: 22mm Case : 316 L stainless steel, premium PVD mat black Case back: Clear Crown: 316L Stainless Steel premium PVD mat black,...

€685.00

Dead Pool - Seiko Mod

CASE: Diameter: 41mm  Thickness: 14,4mm Horn to horn: 47mm Lug width: 22mm Case : 316 L stainless steel, premium PVD mat black Case back: Clear Crown: 316L Stainless Steel premium PVD mat black,...

€685.00

Seikonaut Orange & Waffle - Seiko Mod

CASE: Stainless Steel 316L Diameter: 42.5mm (crown guards included) Diameter: 38mm (without crown guards) Thickness: 12mm Horn to horn: 47mm Lug width: 20mm Caseback: Sapphire Crown: 316L...

€649.00

Seikonaut PADI Edition - Seiko Mod

CASE: Stainless Steel 316L Diameter: 42.5mm (crown guards included) Diameter: 38mm (without crown guards) Thickness: 12mm Horn to horn: 47mm Lug width: 20mm Caseback: Sapphire Crown: 316L...

€675.00

Dark Manta Ray - Seiko Mod

CASE: Stainless Steel 316L Diameter: 42.5mm (crown guards included) Diameter: 38mm (without crown guards) Thickness: 12mm Horn to horn: 47mm Lug width: 20mm Caseback: Sapphire Crown: 316L...

€649.00

Seikonaut Captain Willard - Seiko Mods

CASE: Diameter: 42.5 mm (crown guards included) Diameter: 38mm (without crown guards) Thickness: 12mm Horn to horn: 47mm Lug width: 20mm Stainless Steel 316L case Caseback: Sapphire Crown: 316L...

€990.00

YM Prospex Rose Gold - Seiko Mods

CASE: Diameter: 41mm  Thickness: 14,4mm Horn to horn: 47mm Lug width: 22mm Case : 316 L stainless steel rose gold premium Case back: Clear Crown: 316L Stainless Steel rose gold premium, Screwed...

€650.00

Purple GMT - Seiko Mods

The watch is delivered in its original box, with certificate of authentication and original parts ( Seiko 5 GMT SSKO01K1) Parts modified on the watch : Case, bracelet, hands, crown, bezel....

€990.00

Grand Yacht Blue - Seiko Mods

CASE : Diameter: 42mm Thickness: 16mm (with case back and double domed sapphire) Horn to horn: 46,5mm Lug width: 22mm Case: Stainless Steel 316L Caseback: Clear sapphire Crown: 316L Stainless...

€685.00

Grand Yacht Green - Seiko Mods

CASE : Diameter: 42mm Thickness: 16mm (with case back and double domed sapphire) Horn to horn: 46,5mm Lug width: 22mm Case: Stainless Steel 316L Caseback: sapphire Crown: 316L Stainless Steel,...

€685.00

KX Kaki - Seiko Mods

CASE : Diameter: 42mm Thickness: 16mm (with case back and double domed sapphire) Horn to horn: 46mm Lug width: 22mm Case: Stainless Steel 316L, Black PVD high quality, very resistant Caseback:...

€649.00

YM Skeleton Rose Gold - Seiko Mods

CASE: Stainless Steel 316L Diameter: 40mm  Thickness: 15mm Horn to horn: 47mm Lug width: 22mm Case back: Saphir Crystal Crown: 316L Stainless Steel, Screwed STRAP : Rubber Strap FKM with...

€749.00

DJ 213 - Seiko Mods

CASE: Stainless Steel 316L Diameter: 39mm  Thickness: 12,5mm Horn to horn: 47mm Lug width : 20mm  Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug...

€420.00
  • -€21.00
  • -€21.00

DJ 149 - Seiko Mods

CASE: Stainless Steel 316L Diameter: 39mm  Thickness: 12,5mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug...

€420.00 €399.00
  • -€30.00
  • -€30.00

Deepsea Homage - Seiko Mods

CASE : Diameter: 43.5mm Thickness: 15mm Lug width: 21mm Stainless Steel 316L case Case back: Stainless steel 316L Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L bracelet with 3...

€565.00 €535.00
  • -€30.00
  • -€30.00

Batman Skeleton - Seiko Mods

CASE: Stainless Steel 316L Diameter: 40mm  Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Clear Sapphire Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug...

€419.00 €389.00
  • -€30.00
  • -€30.00

Rootbeer Skeleton - Seiko Mods

CASE: Stainless Steel 316L Diameter: 40mm Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Caseback: Sapphire Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug distance:...

€419.00 €389.00

Hulk Skeleton - Seiko Mods

CASE: Stainless Steel 316L Diameter: 40mm  Thickness: 13mm Horn to horn: 47mm Lug width: 20mm Case back: Stainless steel Crown: 316L Stainless Steel, Screwed STRAP : Stainless steel 316L Lug...

€429.00

Grand Seikonaut Azur - Seiko Mods

CASE: Diameter: 40mm and 43mm crown guards included Thickness: 12,2mm Horn to horn: 46mm Lug width: 10,6mm, 26mm Case: Stainless steel 316L Caseback: Sapphire Crown: 316L Stainless Steel, Screwed...

€649.00

DJ Turquoise 36 - Seiko Mods

CASE: Diameter: 36mm (without crown) Thickness: 13,5mm Horn to horn: 42,8mm Lug width: 20mm Case : Stainless Steel 316L, polished Case back: Sapphire clear case back Crown: 316L Stainless Steel,...

€590.00

Seiko Mods by WatchModCustom

Discover our unique collection of Seiko Mod watches. All our models are meticulously assembled by our passionate watchmaker, Teddy, in our workshop located in Antibes, in the south of France.

We offer a wide selection of different models and styles. Whether you prefer watches with a vintage, classic, or colorful style, the most challenging part will be choosing just one! All our Seiko Mod watches feature automatic and manual winding movements.

Our movements are systematically tested using a timegrapher to ensure precision and proper functionality. We also guarantee the water resistance of each model up to 12 bars using a water resistance tester. Our watchmaker, Teddy, takes the time to meticulously inspect each component for a flawless result.

Our automatic Seiko Mods watches will be delivered in a protective case, including a screwdriver for adjusting the bracelet (only for steel bracelets), and a microfiber cloth.

You have the option to acquire an automatic Seiko Mod watch available for sale in our shop, or to create your custom watch by contacting us directly through the dedicated form on our website. Please present your watch project, and we will discuss the feasibility of your project together.


What is a Seiko Mod

A modified Seiko watch, commonly referred to as a "Seiko Mod," refers to an original Seiko watch that has been customized and modified to cater to the preferences and specific needs of watch enthusiasts. These modifications can be aesthetic, functional, or both.

Aesthetic modifications can involve changes to the dial, case, hands, bezel, bracelet, and more. All parts of the watch can be altered. These modifications allow for the creation of a unique and distinct watch that aligns with personal tastes.

Regarding functional modifications, these might include performance enhancements, such as adding precision movements, improved water resistance, or scratch-resistant sapphire crystal for increased durability.

It's an exciting way to own a one-of-a-kind watch tailored to your personal style.

Seiko Mod - Questions and answers