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Royal seikoak blue open heart

Royal seikoak blue open heart

Royal Seikoak Blue Open Heart – modern symmetry with a mechanical soul

This timepiece blends the precision of modern watchmaking with a bold open-heart design. The Royal Seikoak Blue Open Heart features a rich navy dial and an exposed balance wheel that gives you a glimpse into the inner mechanics—bringing energy and depth to the clean Royal Oak-inspired form.

Built around the automatic Seiko NH38 movement, it offers minimalist elegance with a twist of horological artistry.

Specifications:

  • Case size: 40mm diameter, 11.5mm thickness

  • Movement: Seiko NH38 – automatic open heart (no date)

  • Crystal: Sapphire – scratch-resistant & anti-reflective

  • Dial: navy blue with open-heart window and applied indices

  • Case material: 316L stainless steel – brushed & polished

  • Bezel: octagonal with exposed screws

  • Bracelet: integrated Royal Oak-style stainless steel

  • Wrist fit: 14.5cm–22cm (adjustable)

  • Crown: screw-down

  • Caseback: transparent (view the movement)

  • Water resistance: 10 ATM (100m)

What’s included:

  • Premium watch box

  • Free adjustment tool

  • Hand-assembled upon order

Why Modora:

  • Seiko mods designed in Geneva

  • Secure checkout via PayPal & credit card

  • free tracked worldwide shipping

  • 7-day satisfaction guarantee

  • Any questions? feel free to reach out on Instagram: @modora_watches

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Luxury unboxed

ELEVATE YOUR EXPERINECE

At Modora, we go beyond watches. Each watch comes in a nice travelwatch box that shows our commitment to quality. And that's not all; every purchase includes a free foolkit with a guide to help you adjust your watch strap for a perfect fit. Its our way of making sure every unboxing is exciting and special for you.

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FAQs

What is a Seiko Mod ?

A Seiko Mod watch 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.

How long does it take to arrive ?

Each custom timepiece is hand built To ensure the highest possible standards, we have a lead time of 3 - 4 weeks from the date of order to delivery. This allows us to carry out the necessary quality control procedures and ensure that your watch is made to your satisfaction.

All orders placed through our website are subject to the given lead time even if the item is shown as "In stock".

Each watch is assembled by hand piece by piece in a completely handmade way by an expert with more than 11 years of experience.

Wich movements do you use ?

We use Japanese movements, especially Seiko automatic movements, which are celebrated for their dependability, accuracy, and long-lasting performance.

Movements we use at Timefreeze:

NH34-NH35-NH36-NH38 Automatic Movements

VK63 Mechanical Movement

Are the watches waterproof ?

Our watches are designed with a water resistance rating of 5 ATM, which makes them suitable for everyday use and able to withstand splashes or brief immersion in water.

However, they are not intended for swimming or taking baths.

To ensure the longevity and optimal performance of your watch, we recommend avoiding prolonged exposure to water.

our customers reviews

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