






Seikojust Blue

Drawing inspiration from the iconic Datejust design and powered by the renowned Seiko NH35 automatic movement, the Seiko Mod Datejust combines high-end craftsmanship with accessible luxury in a timeless 36/39 mm package.
- Case Size: 36 or 39mm
- Case Thickness: 13 mm
- Glass: Sapphire
- Wrist Size: Universal (adjustable)
- Case Material: Stainless steel
- Strap Material: Stainless steel
- Movement: NH35 Seiko Movement with date
- Water Resistance: 5 ATM Suitable for normal daily wear and swimming.
- Backside: Transparent case back
Movement:
- Manufacturer: Seiko Instruments
- Model: NH35 Automatic
- Power Reserve: 41+ hours
Shipping Details
Orders
Each Royal timepiece is hand built to order according to your chosen design and specifications. To ensure the highest possible standards, we have a lead time of 1 week from the date of order to dispatch. This allows us to carry out the necessary quality control procedures and ensure your watch is crafted to your utmost satisfaction. All orders placed through our webstore are subject to the given lead time even if the item is shown as "In stock".
Shipping
All Worldwide shipments are fully insured with tracking and mainly handled by our delivery partner. Once shipped, you will receive a personal notice with dedicated tracking information. International orders typically take 5 days to be delivered. These times may vary depending on unavoidable circumstances faced by the delivery partner. Shipping charges are calculated upon checkout and may vary depending on the country of destination.
Customs Import Tax for International Customers
International orders may be subject to import taxes, customs duties, and/or fees imposed by your countries import laws. Such charges are not included in the product price or shipping cost, and are to be borne by the buyer. The buyer is responsible for any associated costs and must abide by their country's laws, regulations, and restrictions.

Seikojust Blue
FAQs
Please read our FAQs page to find out more.
What is a Watch Mod?
A Watch Mod is a custom-built timepiece made by modifying or replacing key components such as the dial, bezel, or hands to achieve a unique and personalized design.
At Royal Mods, each watch is hand-assembled with care and precision, using premium parts inspired by iconic models, to deliver a timepiece that’s both distinctive and built to last.
How can I adjust my watch size?
Each watch comes with an adjustment kit, making it easy for you to customize the bracelet size for a perfect fit.
Shipping Time ?
Total delivery time is 5–9 business days. Every watch is handmade and tested to make sure it’s perfect before we ship it.
About the cost, shipping is totally free.
Are they original ?
We use genuine Seiko movements to create unique watches inspired Top Designers.
Our timepieces are not replicas and we are not affiliated the Seiko brand in any way.
Do you use authentic Seiko movements ?
Yes, we use genuine Seiko NH35/NH38 movements, renowned for their precision and reliability. Each watch is carefully assembled in our workshop to ensure a unique product.
Please note that we are not affiliated with Seiko. Our watches are not replicas, they are fully customized timepieces built from compatible components.