Seiko Custom Mod GMT – Sea of Clouds
Very satisfied with my purchase, the quality is incredible. Customer service was also amazing!
Got this for my boyfriend. He thought it was a Rolex at first 😎 Looks and feels amazing.
This Seiko mod is 🔥. You won’t find better craftsmanship in this price range.
The transparent back is such a flex. Looks custom, feels luxury.
Was skeptical but the weight, shine, and finish are all top notch.
Discover the artistry and precision of the Seiko Custom Mod GMT – Sea of Clouds. Expertly built with the reliable Seiko NH34 automatic movement, this watch features a functional GMT complication for tracking multiple time zones and a stunning custom “Sea of Clouds” dial. Combining accuracy, durability, and elegance, it’s a standout piece for collectors and enthusiasts alike.
Specifications
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Case: GS conversion case crafted from 316L stainless steel
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Bezel: Ceramic rotating bezel
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Bracelet: Heavy-duty leather strap
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Case Back: Exhibition display, screwed and sealed
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Dial: Custom “Sea of Clouds” design
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Movement: Seiko NH34 Automatic (TMI)
Materials
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Case & Bracelet: 316L stainless steel, resistant to tarnish and corrosion
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Hands: GS hands with NH34 GMT hand set
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Crystal: Double-domed sapphire with blue AR coating
Included
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Watch box
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1-year warranty
All watches are made by hand. Please allow 3–5 business days (excluding weekends) for assembly before shipping. This timeframe is an estimate and may take slightly longer during busy periods or high order volumes.
Disclaimer: VVS Jewelry operates independently and is not affiliated with Omega, Seiko, or any other watch brand. All components and movements are newly sourced from independent specialist suppliers.
Our Mission
We’re here to elevate the art of watch customization.
Every piece we modify blends performance and personality — allowing our customers to own a timepiece that’s as unique as they are.
Because watches don’t just tell time — they tell your story.
Craftsmanship & Quality
Each build is handcrafted by skilled modders using premium components.
We prioritize quality in every step — from case finishing to mechanical precision.
The result? A custom timepiece that doesn’t just look exceptional — it performs that way too.
Commitment & Transparency
We are not affiliated with or endorsed by Seiko.
All of our builds are independently modified Seiko timepieces with original Seiko movement and aftermarket parts.
You’re getting real Seiko quality, paired with personal craftsmanship and total transparency.
Questions & Answers
Have a Question?
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Whats the cost on the one in the video? metal bracelet, transparent caseback, NH34 Seiko GMT movement and 45mm case diameter
The exact same watch is $522. Case diameter is 40mm
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Hi if i order today watch wen i receiving in US.
Around 3 - 4 business days to build the watch and around 4 - 6 business days for delivery by FedEx if you select express shipping at checkout
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Does the custom mod gmt sea of clouds, have the seiko gs on the dial?
Yes
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Any pictures of the band and clasp? It says it is leather, will showering damage it? If so, can you replace it with a rubber strap.
Yes, I added a video to the product page gallery right past all the photos. It's the last media file. We recently built this watch for a client: metal bracelet, transparent caseback, NH34 Seiko GMT movement and 45mm case diameter
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Is there an option to enhance the water resistance to 200m or 300m?
The best we could do is 100m which is pretty decent. The watch itself is very beautiful. Here's what we recently shipped out to a customer:
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Questions & Answers
Have a Question?
-
Whats the cost on the one in the video? metal bracelet, transparent caseback, NH34 Seiko GMT movement and 45mm case diameter
The exact same watch is $522. Case diameter is 40mm
-
Hi if i order today watch wen i receiving in US.
Around 3 - 4 business days to build the watch and around 4 - 6 business days for delivery by FedEx if you select express shipping at checkout
-
Does the custom mod gmt sea of clouds, have the seiko gs on the dial?
Yes
-
Any pictures of the band and clasp? It says it is leather, will showering damage it? If so, can you replace it with a rubber strap.
Yes, I added a video to the product page gallery right past all the photos. It's the last media file. We recently built this watch for a client: metal bracelet, transparent caseback, NH34 Seiko GMT movement and 45mm case diameter
-
Is there an option to enhance the water resistance to 200m or 300m?
The best we could do is 100m which is pretty decent. The watch itself is very beautiful. Here's what we recently shipped out to a customer:
Engineered for Everyday Excellence
Crafted from high-grade 904L stainless steel and protected by a sapphire crystal, this watch is built to endure. Its Seiko automatic movement ensures lasting performance, while the iconic black dial in Arabic numerals offers a bold, modern twist.
Subheading
Product Details & Info
• Case Sizes: 36mm or 39mm
• Case Material: 316L Stainless Steel
• Crystal: Sapphire, anti-reflective coating
• Movement: Seiko NH35 Automatic
• Water Resistance: 50 meters (5 ATM)
• Bracelet Options: Jubilee or Presidential
• Date Display: Arabic or Latin
• Warranty: 2 Years
• Packaging: Gift-ready box, cleaning cloth, bonus gift
Every watch is hand-assembled and ships within 5 to 12 business days.
Delivery time (once shipped):
• USA & Canada: 3–5 business days
• Europe & UK: 5–7 business days
• Worldwide: 7–10 business days
You'll receive a tracking number via email as soon as your order is dispatched.
Each timepiece is covered by a 2-year warranty that protects against manufacturing defects.
You'll also receive an official invoice with every purchase for your records.
If you experience any issues, our support team is here to help.
• 1x Seiko Mod Watch (Arabic or Latin Date)
• 1x Premium Gift Box
• 1x Cleaning Cloth
• 1x Mystery Gift
• 1x Bracelet Sizing Tool
What Watch Collectors Are Saying
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"The moment I opened the box, I knew this was special. The Arabic dial adds a unique cultural touch that stands out in my collection."
Khalid M., Dubai
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"Feels as solid as my Swiss watches. The craftsmanship is on point and I love how versatile it looks on the wrist."
James L., New York
⭐⭐⭐⭐⭐
"Shipped faster than expected. Already got three compliments the first day I wore it."
Ahmad R., London
Need help?
Frequently Asked Questions
Each custom watch is hand-assembled and ships within 5 to 12 business days. Delivery takes 3 to 7 days once shipped, depending on your location.
Yes. All watches come with a 2-year warranty and an official invoice for your records.
Every model is water-resistant up to 50 meters and built with 316L stainless steel for durability and daily use.
Each order includes your Seiko Mod watch, a gift-ready box, cleaning cloth, and a bonus mystery gift.
Yes, your information is protected with SSL encryption and payments are processed via Shop Pay, PayPal, and Sezzle.
