Seiko Nautilus Mod NH35

Every ModWatches UK timepiece is built to order right here in Leeds, UK. We don’t bulk-buy ready-made watches from overseas or slap our logo on generic stock.

Instead, we carefully source each individual component ourselves -often from specialist suppliers around the world - and hand-assemble every watch in-house. Naturally this can take some time depending on how many orders we have in our queue.

This process takes time, because every piece is crafted with precision, tested on a timographer for accuracy, and undergoes thorough quality control before leaving our workshop.

Before we ever sold a single watch, we built them for our own collections - driven by passion, not profit and sharing our builds on our Youtube channel.

That same care and attention still guide every build today. So while we almost always beat the 4 week mark, it can occasionally take up to 6 weeks to create something genuinely special: a high-quality watch built by enthusiasts, not middlemen.

Yes

We ship all over the world. Shipping costs will apply and will be added at checkout.

Please note that you will be responsible for any customs payments

Around 5-6 Weeks

Each order is completely bespoke and crafted to your individual preferences by hand. Once your order is placed, we carefully source all the necessary components, inspect each part for quality, and begin the build process.

After assembly, your watch is thoroughly tested using a 24-hour time setter to ensure everything is functioning perfectly.

We then package and ship your watch, with delivery times varying depending on your location and the shipping method selected at checkout.

We know it can feel like a long process -but as they say, anything worth having is worth waiting for, right?

The best way to design your watch is to find an image on the internet which you like and send it to our team on WhatsApp.

We will then be able to advise you on the price and feasibility. Please note that we cannot do custom logos.

To get an update on your order please go to the order tracking page

A modded watch is a timepiece that’s been customised using aftermarket or original parts to create a unique design. Think of it as watch customisation—tailored to your style.

We build all our watches in Leeds, UK.

Yes, all the watches we build are made using brand new parts unless clearly stated otherwise. We inspect all components before assembly to ensure the highest quality.

At the moment, we only build watches using our own sourced components to maintain quality and consistency.

Most of our builds maintain a basic level of water resistance, which is 30m. This is fine up to washing hands and light splashes.

However due to the complex nature of a modified watch we do not reccomend deep submergance or using in the shower.

Yes, unless stated otherwise, all the dials on our chronographs are fully functional

Yes, unless stated otherwise, all our GMT watches feature a working GMT hand

• We use the NH35 movement for most of our watches. This is an automatic movement
• We use the VK63 movement for our chronograph watches (Daytona, etc.). This is a Mecca-quartz movement
• We use the NH34 for our GMT watches. This is an automatic movement
• We use the Miyota 8285 movement for our Day-Date watches. This is an automatic movement

We quality-check and test every watch before dispatch, but if there’s an issue, please reach out within 30 days of delivery. We’ll do our best to make things right.

Yes, we offer a 12 month warrantee starting from the date your watch is shipped. This covers any defects in the movement or overall functionality of the watch.

Please note: As our watches have a basic water resistance rating of 30m, the warranty does not cover water ingress, internal fogging/steaming, or accidental damage.

If you have any questions, feel free to reach out to us via our WhatsApp line — we're always happy to help.

We offer a 14-day return policy. The buyer is responsible for return postage.

To qualify for a refund, the watch must:

• Be in unused condition
  
• Have the original packaging and protective stickers intact on the bracelet