# Custom Royal Oak-style Seiko Mod | AP Custom Watches

Source: https://www.apcustomwatches.com/royal/

Updated: 2026-10-13. Generated from the public page. Check that page for current availability.

# Custom Royal Oak Seiko Mod

## Architectural lines. Individual character.

### Integrated-bracelet style with your dial, your text, your finish

Design previews show possible combinations. Studio views are AI-generated or enhanced examples; finishes may differ. Final components and personal lettering are confirmed before your build.

[Try customizing now](https://www.apcustomwatches.com/build/?style=royal) 

$250.00

Quantity

International Shipping! Customized orders have an estimated build time of 2 weeks. Shipping time is additional. You will receive your tracking number and shipping information once your build is complete.

Includes:

- (1) Custom Royal Oak–style Seiko Mod

- (1) Wood Watch Box

Made to order

Brand: AP Custom Watches (Seiko-based)

Sold by: AP Custom Watches

Returns: Not Accepted [Return policy ⬇ See more](https://www.apcustomwatches.com/help/#returns)

[Customer service ⬇ See more](https://www.apcustomwatches.com/contact/)

THE DETAILS

## Specifications

Case material

Stainless steel

Case size

41 mm

Crystal

Sapphire crystal

Movement

TMI NH35 automatic; skeleton builds use a compatible skeleton movement

Bracelet / strap

Integrated stainless steel bracelet or fitted rubber strap

## Features of AP Custom Watches

Fully customizable: dial, hands, text/logo, case finish

Seiko automatic platform (NH35/NH36)

Sapphire crystal option & premium brushing/polish

Dedicated support to realize your design

## About This Watch

### The Custom Royal Oak–style Seiko Mod by AP Custom Watches blends an iconic octagonal-bezel look with Seiko reliability. Built on a proven Seiko automatic movement, this integrated-bracelet design features your choice of waffle, sand-texture or skeleton dials, applied indices, handset styles, and brushed/polished case finishes. Sapphire crystal is included. Add personalized dial text or rotor lettering on an exhibition caseback. Each piece is hand-assembled, regulated, and quality-checked for daily wear.

- ✔️ Seiko NH35/NH36 automatic movement (date/day-date options)

- ✔️ Integrated-bracelet, octagonal-bezel case — multiple finishes

- ✔️ Sapphire crystal; solid stainless construction

- ✔️ Custom dials, hands, dial text, and exhibition-rotor lettering

- ✔️ Hand-assembled to order and inspected before shipping

## Other Products

### Custom Seiko Day-Date Mod

[View Product](https://www.apcustomwatches.com/daydate/)  [Try customizing now](https://www.apcustomwatches.com/build/?style=daydate)

### Custom GMT Watch

[View Product](https://www.apcustomwatches.com/gmt/) [Choose movement](https://www.apcustomwatches.com/gmt/) [Try customizing now](https://www.apcustomwatches.com/build/?style=gmt)

### Custom Seiko Presage Mod

[View Product](https://www.apcustomwatches.com/presage/)  [Try customizing now](https://www.apcustomwatches.com/build/?style=presage)

FROM IDEA TO WRIST

## Your watch. Your finishing touch.

01

### Choose your details

Explore the case finishes, bracelets, dials, hands and personal lettering in the visual builder.

02

### Review your watch

Check the final design and price, then buy your watch directly from the builder. Your selected customizations are saved with your order.

03

### Made for you

Our studio confirms your details before building. Customized orders have an estimated build time of 2 weeks, plus shipping. We email your tracking information when your watch ships.

[Try customizing now](https://www.apcustomwatches.com/build/?style=royal)

Have a special request? Email [contact@apcustomwatches.com](mailto:contact@apcustomwatches.com) so we can help with your build.