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A Seiko Mod is a customized version of a standard Seiko watch.

The term "MOD" comes from "modification". These modifications are generally made for those who wish to personalize their watch according to their specific tastes or needs. Modifications can vary considerably, from minor aesthetic changes to more complex technical revisions.

What makes Seiko watches particularly amenable to modification is the wide availability of spare parts. This abundance of components enables a wide range of customization, making each Seiko MOD watch unique.

At ModTime, we work exclusively with reliable, high-grade Seiko movements — trusted by watch enthusiasts worldwide for their precision and durability.

Each movement is carefully selected and tested by our watchmaker to ensure optimal performance and a smooth mechanical experience.

We use:

• NH34 Automatic — for our GMT Mods
  
• NH35 Automatic — for date dial builds
  
• NH38 Automatic — for clean dial designs without a date
  
• VK63 Mecha-Quartz — for chronograph models

Every ModTime watch is powered by a movement chosen for its accuracy, longevity, and craftsmanship — the foundation of every timepiece we create.

Absolutely! Every ModTime timepiece comes with a complimentary adjustment kit, allowing you to resize your bracelet easily and safely at home.

Each tool is designed for precision and comfort — the same way our watches are crafted.

If you prefer, your local watchmaker can also assist you with the adjustment — our bracelets use standard Seiko-compatible links, making professional resizing simple and effortless.

Yes — on models that offer both dial options, choose NO LOGO on the product page before adding the watch to cart.

If you are unsure which option is right for the build you want, contact ModTime before ordering and we’ll point you in the right direction.

Absolutely. If you want to explore a more personalized build, contact ModTime before ordering and tell us what style, dial, bracelet, or finishing details you have in mind.

For the fastest answers on delivery, warranty, water resistance, and other common questions, start with the ModTime FAQ.

Each watch is hand-assembled within 4–6 days so we can regulate, inspect, and pack it properly before dispatch.

After assembly, shipping usually takes 7–12 days depending on destination.

Need the full delivery breakdown before ordering? Read our Shipping Policy.

Water resistance depends on the model and option you choose. Most ModTime watches start at 3 ATM, and selected builds offer 5 ATM.

They are suitable for daily wear, rain, and light splashes, but we do not recommend swimming, bathing, or full submersion with any hand-assembled build.

If you want the stronger option for a specific model, check the product page before ordering or contact ModTime.