Seiko Mod by Tanzim

JOIN THE MOMENT, UPGRADE YOUR STYLE

Crafted with passion, built for distinction—your time, your design, your legacy.

NEW ARRIVALS
WATCH COLLECTIONS

COLLECTIONS

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WHY SEIKO

We believe Seiko offers the best value with its reliable and precise movements. Taking advantage of Seiko’s available components, we create custom watches that combine their reliability with your unique design choices. Using only high-quality materials, we make personalized timepieces that fit your style.

ICONIC

Each watch is a tribute to legendary designs.

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TRENDING

Discover the watches everyone is talking about.

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THREE YEAR WARRANTY

Our watches are distinguished by the precision and reliability of their automatic movements. Each of our movements is carefully assembled by expert watchmakers with expertise accumulated over generations.

NEW IN

The latest and greatest. See our new arrivals.

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Customer testimonials

I’ve always wanted a custom Seiko mod but didn’t know where to start. Tanzim made the process super easy with their configurator. The final watch looked even better than I imagined. Worth every taka
"Exactly what I wanted!"

– Rafiq H., Dhaka

I’ve ordered Seiko mods from abroad before, but the build quality from Seiko Mod By Tanzim blew me away. Everything from the dial to the lume is perfect. Plus, no customs hassle!
"Craftsmanship is top notch!"

– Ayaan M., Chattogram

I got a modded watch for my husband’s birthday and he LOVED it. Customer service was responsive and shipping was faster than expected. I’d give 5 stars if the strap had more color options.
"Great service and fast shipping"

– Tania S., Dhaka

As a longtime Seiko fan, I’m thrilled there’s now a local source for high-quality mods. I ordered an NH36-based diver build and it’s running smooth and accurate. Highly recommended!
Finally, custom Seiko in Bangladesh

– Miraj., Dhaka

My custom build turned out absolutely stunning. I get compliments on it all the time. This is not just a watch, it’s wearable art. Big thanks to the Seiko Mod Tanzim team!
"Beautiful, functional, unique."

– Arman Khan., Dhaka

I was a bit skeptical at first, but once the watch arrived, I was blown away. The finishing is clean, the movement is smooth, and the design is exactly how I imagined. It looks like a watch that costs triple the price. Will definitely order again!
Feels premium, looks luxurious.

– Zayan Rahman., Dhaka