CUSTOM ROYAL SEIKOAK EDITION BUMBLE BEE LEGACY - Monomods
CUSTOM ROYAL SEIKOAK EDITION BUMBLE BEE LEGACY - Monomods
CUSTOM ROYAL SEIKOAK EDITION BUMBLE BEE LEGACY - Monomods
CUSTOM ROYAL SEIKOAK EDITION BUMBLE BEE LEGACY - Monomods
CUSTOM ROYAL SEIKOAK EDITION BUMBLE BEE LEGACY - Monomods
CUSTOM ROYAL SEIKOAK EDITION BUMBLE BEE LEGACY - Monomods

4.8 based on 811+ reviews

CUSTOM ROYAL SEIKOAK EDITION BUMBLE BEE LEGACY

Sale price$299.95 USD Regular price$499.95 USD
Save $200.00

Tax included. Free shipping incl. Track & Trace

Estimated assembly: 3–5 business days
Hand assembled to order Genuine Japanese movement Individually inspected
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Description

The Seiko Mod Royal Oak “Bumblebee” Chronograph commands attention with its bold fusion of industrial design and modern sport styling. The brushed octagonal stainless steel case pairs with a vibrant yellow dial and deep black subdials, creating a dynamic contrast that radiates confidence. Luminous markers and hands ensure clarity in every light, while the integrated rubber strap delivers both comfort and edge. This timepiece captures the essence of power, precision, and individuality in one striking design.

Powered by the Japanese Seiko VK64 mechaquartz movement, it combines the tactile feel of mechanical chronographs with the precision of quartz technology. A sapphire crystal provides superior protection, while the screw-down crown and solid caseback ensure long-term durability. Designed for those who dare to stand out, this watch is the perfect balance between strength and sophistication.

Specifications
Dial Bumblebee (Yellow with Black Subdials)
Bezel Brushed Stainless Steel, Octagonal
Movement Seiko VK64 Mechaquartz (Japan)
Case Material 316L Stainless Steel
Case Diameter 44mm (excluding crown)
Crown Screw-Down, Positioned at 3 o’clock
Crystal Sapphire, Anti-Scratch
Strap/Bracelet Black FKM Rubber Strap
Buckle Finish Silver Security Clasp (Default)
Case Back Solid Stainless Steel
Water Resistance 3 ATM (30m)
Functions Chronograph with Subdials (Minutes & 24-Hour Indicator)
Features Luminous Markers and Hands, Hand-Assembled Construction


2 Years Warranty

Every watch includes a 2-year warranty against manufacturing defects.
Built for long-term reliability, backed by real support.

Return Policy

30-day money-back guarantee.
Return your watch within 30 days if it’s not right for you.

Custom Logo Information

Personalize your watch with your own logo on the dial.

  • Select the Custom Logo variant — an upload field will appear.
  • Upload your logo in PNG or JPEG format.
  • Trademarked or copyrighted logos belonging to third parties are not allowed.
  • We’ll send you a digital preview for approval before production starts.
  • For optimal results, we recommend a high-resolution file with a white background.
What's Included

Every order includes everything you need to enjoy your timepiece from day one:

- Luxury presentation box
- Warranty card
- Mini adjustment toolkit

Seiko TMI VK64 manual

Meca-Quartz Chronograph

A hybrid movement that combines the accuracy of quartz with the feel of a mechanical chronograph. The VK64 features a sweeping chronograph seconds hand, instant snap-back reset, 24-hour subdial, and date display, making it ideal for vintage and modern chronograph watches.

The TMI VK64 is a premium Meca-Quartz chronograph movement developed by TMI (Time Module Inc., part of the Seiko Group). Unlike traditional quartz chronographs, the VK64 uses a mechanical chronograph module, delivering crisp pusher feedback, a smooth sweeping chronograph hand, and an instant fly-back reset while maintaining the accuracy and low maintenance of quartz.

 

Specification

Details

Manufacturer

TMI (Seiko Group)

Caliber

VK64

Movement Type

Meca-Quartz Chronograph

Functions

Hours, Minutes, Chronograph Seconds, 60-Minute Chronograph, 24-Hour Indicator, Date

Jewels

0 Jewels

Accuracy

±20 seconds per month

Battery

SR936SW Silver Oxide

Battery Life

Approx. 3 Years

Diameter

29.00 mm

Height

5.10 mm

Hacking Seconds

Yes (Time Setting)

Country of Origin

Japan


Operating Instructions

Setting the Time

  1. Pull the crown to the second click.

  2. Turn the crown until the correct time is displayed.

  3. Push the crown back to the normal position.

Setting the Date

  1. Pull the crown to the first click.

  2. Turn the crown to set the correct date.

  3. Push the crown back once finished.

Important: Do not change the date between 9:00 PM and 3:00 AM, as the calendar mechanism may be engaged.


Using the Chronograph

Starting the Chronograph

  • Press the top pusher (2 o'clock) to start timing.

Stopping the Chronograph

  • Press the top pusher again to stop.

Resetting

  • After stopping the chronograph, press the bottom pusher (4 o'clock).

  • The chronograph hands instantly return to 12 o'clock, just like a traditional mechanical chronograph.


Care & Maintenance

  • Replace the battery approximately every 3 years.

  • Avoid exposing the watch to strong magnetic fields and severe impacts.

  • Keep the crown fully pushed in (or screwed down if applicable).

  • Although quartz movements require less maintenance than automatic movements, periodic servicing is recommended to maintain water resistance and overall performance.


Why Choose the VK64?

  • Premium Japanese Meca-Quartz movement

  • Quartz precision with mechanical chronograph feel

  • Smooth sweeping chronograph seconds hand

  • Instant snap-back chronograph reset

  • Crisp mechanical pusher action

  • 24-hour indicator and date display

  • Approximately 3-year battery life

  • Highly reliable and low maintenance

The VK64 is an excellent choice for enthusiasts who appreciate the appearance and operation of a mechanical chronograph while enjoying the accuracy and convenience of quartz technology.

INSPIRED BY ICONIC DESIGNS

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811 Reviews
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Orders Shipped

Your watch is made using carefully selected premium materials and handcrafted Japanese craftsmanship.

Discover the difference

Sapphire Crystal

Sapphire crystal is used for one simple reason: long-term clarity.
It resists everyday scratches and wear, so the watch keeps its appearance without needing extra care or concern.

STORE REVIEWS

Rated 4.8 / 5 based on 811+ reviews across all channels. Showing our top reviews.

4.8

5 star
92%
4 star
8%
3 star
0%
2 star
0%
1 star
0%

Sean M.

Verified ·

Came in a sturdy case with a 2-year warranty card inside. Packaging felt premium, and the sapphire glass looks crystal clear—amazing first impression.

Seikosub Marine Shadow

Seikosub Marine Shadow

John D.

Verified ·

Arrived faster than expected and perfectly packaged. The domed glass gives a beautiful vintage vibe, thanks!

Seikosub Milsub Nato

Seikosub Milsub Nato

Natan R.

Verified ·

Solid build, vintage diver look, and smooth automatic movement—feels pretty premium on the wrist.

Scubamaster 58

Scubamaster 58

Michael T.

Verified ·

The presidential bracelet feels super comfortable and solid. Sapphire glass is spotless, and packaging with the warranty card was a great addition.

Seikodate Champagne

Seikodate Champagne

Lisandro K.

Verified ·

Perfect blue tones and great detailing. Shipping was fast, and the watch came well-packed with a warranty card included.

Speedseiko Blue

Speedseiko Blue

David P.

Verified ·

Really like the clean edges and smooth finish on this watch. The brushed steel case looks sharp, and the open-heart dial adds a nice touch. Feels well-built and comfortable on the wrist.

Nautiko Emerald

Nautiko Emerald

Monty S.

Verified ·

Fantastic quality and great attention to detail. It’s easily my new favorite watch. Shipping was fast, packaging was secure, and I’ll definitely be adding more to my collection.

Seitona Bumble Bee

Seitona Bumble Bee

Robert L.

Verified ·

Best purchase I've made in a while. The quality is outstanding and worth every penny.

Nautiko Open Heart

Nautiko Open Heart

George L.

Verified ·

The watch arrived spotless—Feels sturdy on the wrist, and the sapphire glass stays perfectly clear.

Seikodate Imperial

Seikodate Imperial

Chris B.

Verified ·

Superb quality and excellent customer service. This is my favorite MOD store for sure! Love the open back case too.

Nautiko Open Back Case

Nautiko Open Back Case

Joey D.

Verified ·

Exceeded my expectations. The details stand out and it feels premium without being over the top. Delivery was smooth and on time. I’ll be ordering again.

Seitona Bumble Bee

Seitona Bumble Bee

Sandro L.

Verified ·

Came well packed and protected. The watch has a really nice weight to it and the finishing is clean. No complaints at all.

Seikojust Champagne

Seikojust Champagne

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Experience real craftmanship

HANDCRAFTED WITH JAPANESE CRAFTSMANSHIP, CAREFULLY TESTED, AND BACKED BY CLEAR POLICIES — CONFIDENCE BEFORE AND AFTER PURCHASE.
What you can rely on
MONOMODS
Professionally hand-assembled and inspected
Tested for waterproof resistance
Quality control before every shipment
Trusted by thousands of customers worldwide
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Japanese movements, chosen for reliability
Warranty-backed support you can rely on

FAQ

A Seiko mod is a custom watch built around a reliable Japanese Seiko movement, combined with carefully selected aftermarket components.

At MONOMODS, each watch is hand-assembled using proven automatic or hybrid movements, premium materials, and transparent construction, giving you the freedom to enjoy refined designs without counterfeit products.

The goal is simple:
Luxury-inspired design, built honestly, and made accessible without shortcuts.

Each watch is assembled to order, ensuring proper fit, performance, and quality.

Here’s what to expect:

  • Assembly & Quality inspection:  3–5 days
  • Shipping: 5–12 days

Once assembly is complete, you’ll receive your track & trace details by email.

Delivery times may vary slightly depending on destination, but you’ll always know where your watch is.

Yes.

  • Shipping is free
  • Import duties and customs fees are included in the price

There are no surprise charges when your watch arrives.
What you see at checkout is what you pay, simple and transparent.

Yes, personalization is at the heart of what we do.

You can customize:

  • Case
  • Dial
  • Hands
  • Bracelet
  • Logo or initials

If you’d like help designing a fully personalized watch, contact us via email or live chat.

We’ll guide you through the process step by step.

Yes.

If you’d like a watch with your own logo, you can contact us by email or live chat and share your logo along with the watch model you prefer.
We’ll create a design mockup for your approval first.

Once you’ve approved the design, we’ll begin assembling your watch.