
10 ATM Vattentät
Tål regn, vattenstänk och simning
BUY NOW, PAY LATER
3 FOR 2 ON ALL WATCHES
FREE SHIPPING & EASY RETURNS
Lägg 3 klockor i varukorgen, 1 blir gratis. Ingen kod behövs. Avslutas om ...
Tål regn, vattenstänk och simning
Låda i läder & verktygssats
För bekymmersfritt användande
Enkelt & smidigt
Movement:
Shipping time is estimated at 4–8 business days. Please note that each watch undergoes 3–5 business days of build time before shipping, as we conduct thorough quality checks and water pressure testing to ensure every timepiece meets our high standards.
Return items within 100 days for a full refund. Items must be in their original condition.
We offer a 3 year guarantee!
If your watch has any defects, please contact us for repair or replacement. Keep your purchase receipt for warranty claims.
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Each watch comes in a fancy leather watch box. And that's not all, every purchase includes a free toolkit with a guide to help you adjust your watch strap for a perfect fit.
SEIKO MOVEMENT
Automatic, self-winding, 41+ hour power reserve, and trusted in the watch industry for its accuracy.
WATER RESISTANT
Planning to swim? No problem, our watches are 10ATM water-resistant and built for everyday wear.
904L STAINLESS STEEL
Crafted from 904L stainless steel, the same grade used by luxury watch brands. Built to shine for a lifetime.
SAPPHIRE CRYSTAL
Fitted with sapphire crystal, ultra-clear, scratch-resistant. Your watch stays sharp, no matter what.
Need help?
A Seiko Mod is a unique, custom-built watch hand-assembled using a prestigious Seiko automatic or hybrid movement, combined with high-quality aftermarket parts, crafted from 904L stainless steel.
Have you ever dreamed of owning your ideal timepiece?
The purpose of Seiko mods is to make the designs of luxury watches accessible to a wider audience, without resorting to counterfeit products. Each build uses only the best materials, such as sapphire crystal and ceramic bezels, to ensure quality and authenticity.
Overall, the entire process from start to finish spans 10-14 working days (Monday-Friday), ensuring each watch meets our high standards before it reaches you.
About the cost, shipping is totally free.
We include (for free) a complimentary tool kit to help you adjust the strap properly. Click here for instructions.
Please refer to the guide you get on email and follow the instructions carefully to adjust your strap size.
Absolutely. We provide the flexibility to customize your watch according to your preferences, including the option to remove the Seiko logo.
Please include your specific requirements in a message when placing your order.
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.
Need more help? Our support team is here to assist you.
SUMMER
Recently purchased? Please leave us a review. We appreciate the feedback and read every review.
Took advantage of Modsera’s 3 for 2 deal and absolutely love all of the watches I got. They all hold great time, are super easy to adjust the links, and the customer service and response time to any questions was superb. Definitely will be a return customer!
I’m still in shock of the quality of my watch! I was so skeptical with custom making mine, but after I got it in the mail, it was totally worth it. I’m already looking at buying two more…
I am very happy with my GMTeiko rosegold rootbeer.
It is beautiful and run great on time. Great watch
Amazing product, great customer service and the shipping was fast. Definitely going to order more
Did the 3 for 2 deal and wow are these watches well made. I have almost 20 watches and most are seikos and I can honestly say the bruce wayne gmt I got as one of my 3 is easily my favorite watch of all the ones I have already. Great builds.
I think the watch looks amazing and it feels amazing! They took their time putting it together and you can see it. I wish that it came with the metal back rather than the glass one, like in the advertised picture. Shipping says 4-8 days, but mine actually took 22 days to be delivered from the day I ordered it. Which kinda sucked because I wanted to take it on my vacation. Overall I give it a 4.5 stars.
Awesome watch very happy and satisfied with timepiece and addition to the collection. I got email updates throughout the build and shipping process. Customer service like this is not normal. Good experience!
This watch is such a striking statement piece! I love it…it’s exactly what I’d been hunting for. I’m a woman who wanted a larger face with bold but classic appearance. The cyclops lens showing the date is perfect! The only thing to improve is the closure clasp…it is a bit stiff to open. There’s a smaller over-clasp that is easy, but the big clasp piece is a bit tough to open. I think that will get better in time. Overall, I’m very happy with it! I added a beautiful diamond peace sign dangle charm and I’m thrilled with it all! Thank you!
I love this watch! I have been getting complements on it non-stop and I feel great wearing it. It is just an awesome piece. It is also really comfortable, which I am super happy about. I have another watch like this that I purchased from a cheaper seller and despite looking the same, it was clearly much lower quality. The cheaper watch had a bracelet which was sharp and uncomfortable. Not the case here! The Modsera watch is comfortable and easy to wear!
I got this watch because this is something I wanted Seiko to do but they didn’t and Modsera does it really well. The watch is really well made and feels great to wear. Looking forward to buying more watches in the future.
Really impressed with this watch. The weight, the feel, the look. All better than I expected. This is perfect for my int’l trips when I don’t like taking my ‘real’ luxury timepieces. But also great for a day or night out! Had several unsolicited compliments over a 2 day period.
I’ve been looking for a Sub for sometime now and I’m beyond happy I purchased this watch. The look, feel and detail is amazing as well as the quality of the watch. I’ll being adding a GMT to my collection from Modsera in the near future! Fast shipping, great service 10/10
If you’re looking for great looking watch definitely buy from Modsera!! Excellent customer service . Definitely get compliments on this watch
Just got my Nautiko brown. Never had an experience as I got from this store. Promptly replies, shipping updates every other day and super quality on the watch I got.
Super happy with this order. Probably going to order 3 more and take advantage of the 3 for 2 discount.
Couldnt be more satisfied with my order. Fast shipping, updates and pictures of the build process and they even gave me a free extra strap.
I ordered a custom watch. I took 10 days to arrive but I understand why because they usually dont sell some of the parts I wanted. Im very happy with my watch and how it turned out.
I couldn’t be happier with my GMTeiko Wayne. The Grey and black bezel looks incredible in person—bold, refined, and perfectly balanced. The build quality exceeds expectations, with every detail feeling precise and intentional. Customer support was friendly and proactive, keeping me updated from order to delivery.
The GMTeiko Batman is absolutely stunning. The blue and black bezel catches the eye instantly, and the craftsmanship is truly exceptional. From start to finish, the customer service was outstanding—professional, responsive, and kept me informed every step of the way. Shipping was quicker than expected, making the entire experience seamless.
Highly recommended for anyone looking for quality and style.
Been using the Seikojust Olive, and it’s been exceptional. The olive dial is stunning, and the craftsmanship is top-notch. Customer service kept us updated throughout, and shipping was fast. Highly recommend this watch for its quality and style!
Looks great , link screws were really tight but I figured out a way to get them off . Shipping was weird but customer service took care of it. Watch came 2 days earlier. So I would buy again