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FAQs
What is a Seiko Mod Submariner GMT?
A Seiko Mod Submariner GMT is a custom-built automatic watch inspired by iconic dive and GMT designs, combining premium aftermarket parts with a reliable Seiko-based NH35 or NH34 movement. These watches are hand-assembled for a unique, luxury-style look at an accessible price.
Does this watch have a real GMT function?
Yes — our Seiko Mod GMT models feature atrue GMT movement (NH34), allowing you to track a second time zone using the 24-hour hand and rotating bezel.
What materials are used in the Seiko Mod Submariner GMT?
Our watches are built with premium components, including:
- 316L stainless steel case
- Scratch-resistant sapphire crystal
- Ceramic or rotating bezel
- Luminous hands and markers
These materials ensure durability and a high-end feel.


