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Mercierprototype Reviews 

3
TrustScore 4 out of 5

4.0

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Company details

  1. Watch Manufacturer

Written by the company

Mercier 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.

Backed by the maker

5-year warranty · 30-day returns

5-year warranty · 30-day returns
Every Mercier is individually numbered and stood behind personally by the founder. Each watch carries a 5-year warranty and 30-day returns — if it's not right, send it back. Questions go straight to the person who designed your watch, not a support queue.

Contact info

4.0

Great

TrustScore 4 out of 5

3 reviews

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4.0

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(3)

2 reviews in the last 12 months

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Rated 5 out of 5 stars

I’ve been watching this project from…

I’ve been watching this project from the beginning and at first I wasn’t sure it would amount to anything but, talking with Devin about his watches you can see the wheels turn and then he starts talking about ways around the problem. I can’t want to see the watches he comes out with. I bought one of the original test models and am surprised that the early prototype has held up as well as it does.

29 August 2026
Unprompted review
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Reply from Mercierprototype

Thanks Darrin. This entire process is terrifying. I’m putting so much into this business daily so this kind of feed back is incredibly valuable to me.

Rated 5 out of 5 stars

Finally something new and interesting

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.

1 July 2026
Unprompted review
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Reply from Mercierprototype

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.

Rated 5 out of 5 stars

It's not often someone that you…

It's not often someone that you purchase something from takes time to speak with you and share with you a little about themselves, it makes a huge difference to people, and leaves a lasting impression when a creator shares his/hers passion and experiences that influenced their vision. For me that's what its all about.

12 August 2026
Mercierprototype logo

Reply from Mercierprototype

Carl man, Thanks for this. It honestly means more than you know. When I started Mercier Prototype, the whole point was to build the kind of watch company I'd want to buy from myself: one where you can talk to the actual person who designed and assembled your watch, not a support ticket. Every one of these conversations shapes what I build next. I'm grateful you took a chance on a small brand, and I can't wait to get the Manx on your wrist this October.

— Devin Mercier, Founder

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