A Seiko mod is a custom-built watch assembled with aftermarket components around a Seiko movement. Each product page lists its movement and specifications. The Mod Labs is independent and is not affiliated with Seiko Watch Corporation.

A complimentary bracelet-adjustment tool kit is included with every watch order. You can use it to resize your bracelet at home or ask a local watchmaker to help. Contact us if you need assistance.

The online design-your-own watch builder is coming soon. For now, choose the options shown on each product page. If you want a different dial or strap, contact us before ordering to check what can be supplied.

Yes. Our watches use genuine Seiko movements. The calibre varies by model; check the product page for its movement, such as an NH-series automatic calibre or VK63 meca-quartz movement.

Some dials can be supplied without the Seiko logo. Availability depends on the model and parts in stock, so please contact us before ordering to confirm the option for your chosen watch.

Each watch is made to order. Please allow 2–3 business days for production, testing and preparation before dispatch. Tracked worldwide delivery is estimated at 7–10 business days after dispatch. Courier and customs delays may affect delivery times.