NautilusNautilus / CUSTOM MOD
A1MODS
FIND YOUR MOD
Nautilus
GMTGMT / CUSTOM MOD
GMTCoke / Jubilee
GMTGMT / CUSTOM MOD
GMTJoker / Oyster
NautilusNautilus / CUSTOM MOD
Nautilus ClosedSilver / Black
NautilusNautilus / CUSTOM MOD
Nautilus OpenRose gold / Brown
NautilusNautilus / CUSTOM MOD
Nautilus OpenSilver / Black
GMTGMT / CUSTOM MOD
GMTRootbeer / Jubilee
GMTGMT / CUSTOM MOD
GMTPepsi / Oyster
SubmarinerSubmariner / CUSTOM MOD
SubmarinerDeepsea / Oyster
SubmarinerSubmariner / CUSTOM MOD
SubmarinerHulk / Oyster
SubmarinerSubmariner / CUSTOM MOD
SubmarinerHulk / Jubilee
SubmarinerSubmariner / CUSTOM MOD
SubmarinerRose gold / Purple
SubmarinerSubmariner / CUSTOM MOD
SubmarinerYacht / Oyster
SantosSantos / CUSTOM MOD
SantosWhite
DayjustDayjust / CUSTOM MOD
DayjustRose gold / Wimble
We deliver your order within Germany free of charge within 5 working days of receipt of payment. For custom builds, we agree on delivery times personally.
EXPLORE ALL MODSSEIKO MOD
WHICH STYLE IS YOURS?
A1MODS IN MOTION
THE DETAILS MAKE
THE DIFFERENCE.
The play of light. The movement of the mechanism.
A closer look at the details that make a mod.
FROM COMPONENT TO MOD
SMALL PARTS.
BIG CHARACTER.
A look at the workbench.
Where individual details become a watch.
02 / DIAL & DETAILS
CHARACTER IS IN THE DETAILS
ONE DIAL.
YOUR EXPRESSION.
Light on the dial. The movement of the hands. The shape of the case. In motion, you can see how every detail works together.
Find your own look
A1MODS · CUSTOM BUILDSINDIVIDUALLY PLANNED. BUILT AROUND YOU.
YOUR IDEA.
YOUR WATCH.
Know exactly how your watch should look, or just have a rough idea? We choose suitable components together and agree on price and delivery time before you confirm your order.
THREE STEPS TO YOUR MOD
Share your idea
Describe your ideal watch or send us a reference image.
Agree on the details
Together we agree on components, price and delivery time.
Confirm your configuration
We start building your watch after your approval.
ENQUIRE ABOUT YOUR WATCH
An idea is enough. We work out the details together.
CUSTOMER REVIEWS
Worn by you.
“The watch looks fantastic and feels really premium. It exceeded my expectations!”
“Beautiful design, clean workmanship and great details. I would happily order again.”
“The quality is impressive. It looks and feels like a much more expensive watch.”
GOOD TO KNOW
YOUR QUESTIONS.
CLEAR ANSWERS.
The essentials before your first mod.
And if you still have questions:
What is a Seiko mod?
An individually designed watch made from compatible components such as a movement, case, dial, hands and bracelet. Parts vary by model. A1mods is independent and is not an official Seiko dealer.
Can I request my own look?
Yes. Share your inspiration, colours and desired details in the enquiry form. We will discuss which combinations are possible.
How much does my mod cost?
You can find model prices in the Collection. The price of a custom build depends on components and work involved. We agree on the final price before you place your order.
How do I order and how long does delivery take?
Add available models to your cart and pay by card through Stripe without creating an account. We deliver within Germany free of charge within 5 working days of receipt of payment. For custom builds, we discuss specifications and delivery time personally.
Which size is right for me?
Each product page lists case diameter, height and bracelet width. Compare these measurements with a watch that fits you well. If you need help with fit or bracelet adjustment, ask us before buying.
What about returns and service?
For information about standard purchases and individually made watches, see Withdrawal & returns. For questions about your watch, care or a possible defect, contact us at [email protected].
CUSTOM WATCHES BY A1MODS
Find your Seiko mod or create your own watch.
Explore our Seiko mods and compare designs, sizes and movements. Want a different combination? We will plan your individual watch with you.
YOUR IDEAL WATCH STARTS HERE.
TELL US ABOUT
YOUR IDEAL WATCH.
A model from the collection or a look of your own? Tell us which watch you would love to wear.
[email protected] A rough idea is enough to get started.