MercierprototypeMercier Prototype is a veteran-owned watch company building accessible luxury automatic watches — Belgian-designed, individually numbered, and stood behind personally by the founder.Our watches are built around Japanese Miyota automatic movements — the 9122 in the Manx and the 9120 in the Manx Meridian — with sapphire crystals, 10 ATM water resistance, and dials specified down to the millimeter. Each piece is part of a limited, individually numbered run, and every order gets a personal call, text, or email from the founder — not a support queue.We're a small company by design. That means the person who designed your watch is the same person who answers your questions, backs the 5-year warranty, and honors 30-day returns on every piece. If it's not right, send it back.Founded in 2025 by Devin Mercier, U.S. veteran. Built to be lived in.
Mercierprototype (mercierprototype.com) has 7 customer reviews on Five Star Index, with an average rating of 5.0 out of 5.
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Carl J.
As always Devin goes above and beyond, everyone needs to support the man and get one of his killer creations.
Response from MercierprototypeSep 24, 2026
Thank you so much man! it's always good to have repeat customers
Glen G.
If you are looking for high quality micro brand that producers amazing watches then you have come to the right company! Devin Mercier has a vision and a passion for watches that is rarely seen in the watch community. I can not recommend Mercierprototype enough
Response from MercierprototypeSep 24, 2026
Thanks GLEN! I can't wait to finish your watch!
Sameer M.
I’ve been wearing the prototype for almost a month now and I must say that it is a very well put together watch. The movement behind the clean watch face has been totally reliable and I know I can trust this piece in my demanding job at the office or in the field. Special shout out to Devin Mercier who has been more than gracious and accommodating in answering all of my questions. It’s very obvious that he really cares about his customers.
Response from MercierprototypeSep 14, 2026
Thank you for sharing this! It's very important to me that people that purchase anything from us not only get what they need but, aren't afraid that we are new. I am very happy to hear that you love your watch.
Harry G.
Ordered and shipping was fast process was seamless. The watch itself blew me away. Better quality than watches that cost 10x more. The effort put into making the watch is evident. Looking forward to other releases.
Response from MercierprototypeSep 2, 2026
Thanks Harry I hope you enjoy it for a long time and come back for our other models as well
Sam B.
They sold me a super solid watch, I loved the build and I love the way they do business. Would recommend to anyone.
Response from MercierprototypeSep 1, 2026
Thanks Sam glad you’re enjoying your pre-production watch. Stay tuned!
Dex N.
Had to show some love to my guy and his new Mercier Prototype. I’ve been wearing this one and honestly, I really like it. It’s clean, feels good on the wrist, and the details hit different when you see it in person. It’s not one of those watches that’s doing too much, but it still gets your attention. Definitely something I’d throw on with a casual fit or dress it up for the night. Big shoutout to Mercier on this one. Can’t wait to see what they come out with next. 🤝🏽
Response from MercierprototypeAug 31, 2026
I'm just glad you kept wearing it after you were done testing. I know watches are incredibly personal and the fact that you like enough to speak this highly is incredibly satisfying.
Camille F.
My experience with these watches has been completely positive. I was looking for something I hadn't seen 100 times over, or purchase an overly manufactured watch like a Rolex, this exceeded my expectations. The process was easy to checkout, select the color I wanted, and place the order. Initially I was a product tester for the line and liked the feel, quality and performance of the watches. I hope to see more designs in the future as well.
Response from MercierprototypeAug 30, 2026
Thank you so much Camille. Looking back I am kind of embarrassed of the initial tests I gave out to people but, it makes me incredibly excited for what we are releasing end of October.
