Seiko MOD - Datejust 36/40mm Steel/YELLOW GOLD Champagne Dial

€539,00 EUR

Watch Technical Specifications

Case:
Case in Steel / Yellow Gold, 36/40 mm diameter, 11.9 mm thickness

Bracelet:
Choice of: Two-tone Steel / Yellow Gold Jubilee bracelet with small links or Two-tone Steel / Yellow Gold rivet-type bracelet
Equipped with a folding clasp with quick micro-adjustment, allowing precise length adjustment without tools.

Crystal:
Sapphire crystal with multi-layer anti-reflective coating, ensuring transparency and scratch resistance.

Hands:
Mercedes-type hands, with C1 (green emission) coating applied by hand.

Dial:
Champagne dial, with hand-applied indices, also coated with C1 (green emission) luminescence, ensuring excellent visibility in dark environments.

Bezel:
Choice of bezel: Fluted, smooth or domed, Yellow Gold finish.

Case back:
Available in two versions: solid two-tone Steel / Yellow Gold or transparent sapphire, allowing admiration of the automatic movement.

Crown:
Screwed crown with a triple sealing system (gasket, tube and reinforced internal threading), ensuring maximum protection against pressure and humidity.

Movement:
SEIKO NH35A automatic caliber (Japanese origin, authentic).
Complications: date, manual winding and hacking seconds.
Each movement is relubricated, regulated and calibrated according to the N.A Timekeeping protocol, guaranteeing a precision of –4 / +5 seconds per day, compared to –30 / +90 seconds ex-factory.

Oscillating weight:
Multi-block oscillating weight, composed of brass and tungsten for optimal inertia and efficient winding.
Available finishes: steel, yellow gold or rose gold.

Water resistance:
Certified to 100 meters (10 ATM).
Each watch undergoes a double water resistance test, with printed results accompanying each watch.

Warranty:
3-year international warranty, with full coverage of transport (return and reshipment).
Each watch comes with its personalized warranty card, featuring the unique serial number and the assembly date.

Customization:
All components can be configured according to your preferences: bracelet, hands, bezel insert, dial, etc.
Possibility to add a personalized engraving (text, logo, initials, phrase).
For any specific request, please contact our workshop directly at +33 6 07 35 93 15.

3 interest-free payments available - Contact us to take advantage of this offer!

What does your N.A TIMEKEEPING watch come with?

  • Leather box containing your N.A TIMEKEEPING watch
  • Additional leather travel pouch.
  • Genuine leather card holder containing your 3-year warranty card with serial number and reference.
  • 3-year warranty card with your watch's serial number and reference
  • Chronometric report on 5 positions printed on paper.
  • Greiner Leak checker PRIME© waterproofness report printed on paper.
  • Tools to adjust the size of your watch depending on the type of strap you have (screwdriver/fork)
  • Detailed user manual on the operation of your movement
  • N.A TIMEKEEPING microfiber cloth
  • Certificate of Authenticity for SEIKO movement, origin JAPAN

Motion graphics option

Decoration worthy of the greatest watchmakers, meticulously handcrafted and visible on the back of your case.

discover the tk-1 movement decoration

Assembled in Paris by a true watchmaker

A Parisian workshop open to the public, which, unlike some, has nothing to hide. Each watch is assembled according to the strictest standards, following rigorous processes and controls. Our commitment to the quality of the timepieces that leave our workshop is as strong as our passion for sharing our expertise with you

Our expertise

Got a question? We've got the answer!

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★★★★★Over 150 five-star Google reviews
Jonathan Gomes zyateGoogle
★★★★★
1 month ago · 5/5
I came to this workshop to have my MoonSwatch customised. The work on the watch is excellent, and the team is attentive and professional. This is exactly the kind of watchmaking workshop we love. I will definitely come back for another project or purchase. Many thanks to Noah. I highly recommend this workshop. 👍🏽
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Claude ABBOUGoogle
★★★★★
1 month ago · 5/5
Thank you, Noah, for your professionalism, kindness, the way you treat your customers, myself included, and your exceptional after-sales service. Once you come to your workshop, you never want to go anywhere else. I found you by chance while looking for a real watchmaker. What a lucky coincidence!! CCA
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Théo RICHARDGoogle
★★★★★
2 months ago · 5/5
My first watch purchased from N.A TIMEKEEPING. A very good experience, very reasonable lead times and careful packaging with a lovely box. Highly recommended.
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Vincent DRUESNEGoogle
★★★★★
2 months ago · 5/5
Thanks to Noah for this absolute stunner! Delivered in less than three days, a bespoke watch of outstanding quality. You can order with complete confidence!
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Emmanuel LenysGoogle
★★★★★
2 months ago · 5/5
Exceptional, professional work. Everything was flawless from placing the order to receiving it. I will place another order with complete confidence.
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Olivier PateGoogle
★★★★★
2 months ago · 5/5
Great phone contact, delivered on time. The watch is truly beautiful, and I will probably buy another one. Thank you again for your professionalism.
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Jim DrouetGoogle
★★★★★
3 months ago · 5/5
Noah's kindness is matched only by his professionalism, speed, availability and willingness to listen. The service is absolutely perfect and the result is outstanding!!! Thank you very much, Noah.
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Alan QuiabaGoogle
★★★★★
3 months ago · 5/5
You can trust them completely. Their work is beautiful and the finishes are flawless. I am more than satisfied with how my watch turned out; I never expected it to look this good 😍😍💪🏻 Noah is fantastic.
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Nino PoloniGoogle
★★★★★
3 months ago · 5/5
I wanted a unique watch, something a little different from what you usually find in stores. After watching a few of Noah's videos on social media, I took the plunge. My first impression of the boutique said it all: a small workshop that radiates professionalism, with one beautiful watch after another. Talking to Noah quickly put all my doubts to rest. He is genuinely passionate! We designed the watch I had imagined together, and his valuable advice helped me refine my choices. Because of the colours I chose, especially for the strap, some parts had to be ordered, yet my watch was ready in just 15 days. The result is stunning, the watch feels high quality and the packaging has a luxury feel. A thousand thanks! This is my first order and certainly not my last. See you soon.
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Guillaume LGoogle
★★★★★
4 months ago · 5/5
A very good experience with this watchmaking workshop. Communication with Noah was very smooth. Thank you for your professionalism — highly recommended.
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Pierre de GouvilleGoogle
★★★★★
4 months ago · 5/5
I had my MoonSwatch customised by the N.A Timekeeping workshop and I am completely satisfied (quality materials, screw-down crown, sapphire crystal, etc.). Highly recommended!
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Rambaud ThomasGoogle
★★★★★
4 months ago · 5/5
Hello, I am delighted with my purchase. Noah is very approachable and understands exactly what you are looking for. The customisation is beautiful and the workmanship excellent. I will probably buy another watch for my wife. Highly recommended. 👍
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Joesun 64Google
★★★★★
4 months ago · 5/5
A watch customisation workshop and boutique that can bring your timepiece ideas to life. The owner and his colleague will welcome you with professionalism and kindness, accommodating most of your wishes.
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ColinGoogle
★★★★★
5 months ago · 5/5
Stumbled across the shop when I did a google search of nearby watch stores as I knew I wanted to get a watch while visiting Paris. Noah and the other technician were so pleasant to deal with no pressure at all as I looked and looked at all the models. Was happy to put a different bracelet on a watch I was considering and answered all my questions. Extremely knowledgeable. When I finally picked my watch he was a perfectionist in making sure the clasp was perfectly positioned (I was fine with it being slightly off but not Noah). I do not speak French but my wife who is fluent noticed how helpful he was when someone phoned the shop with a question.
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Corentin LemaireGoogle
★★★★★
6 months ago · 5/5
I am posting this review after wearing my 36 mm Explorer for several months. I am very satisfied with the watch and Noah's work. I am very particular about accuracy, and the movement performs well, gaining only a few seconds a day. The watch is beautifully made, and the micro-adjustment clasp is a real advantage. I also had occasion to use the after-sales service for a small adjustment. Communication with Noah was incredibly smooth, and shipping the watch back and forth was trouble-free. Being able to speak directly to the watchmaker who designs and builds your watch is a major plus! In my opinion, the value for money is unbeatable. I am a demanding buyer and will undoubtedly come back to Noah for another timepiece. Thank you, Noah, and keep up the great work.
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Loic WojtowiczGoogle
★★★★★
6 months ago · 5/5
I am still amazed at how incredible this watch is! The quality is simply impressive, with care given to every detail… It is genuinely top-level work. Honestly, it is so beautiful I almost hesitate to wear it for fear of damaging it. It looks like a collector's piece. I am completely won over — love at first sight ❤️ Thank you to the team at Atelier N.A Timekeeping.
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Mickael TissierGoogle
★★★★★
8 months ago · 5/5
For my very first timepiece, I had the pleasure of entrusting my project to Noah. He listened carefully, showed great professionalism and genuine passion, and guided me expertly at every stage. A huge thank-you for this unique model, which fully met my expectations. I look forward to doing it again with a future order.
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jean-alain le borgneGoogle
★★★★★
8 months ago · 5/5
I have always loved watches and was very glad I entrusted my project to Noah Assouline. Quite frankly, this is the best workshop I know for creating a watch that meets your expectations. I wanted a Bettarini (Panerai) style case in a more discreet 40 mm size. I received it today and it is BEAUTIFUL 🤩
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B. MilouxGoogle
★★★★★
9 months ago · 5/5
I collected my watch today and had it engraved on site. Noah Assouline is fantastic. You can tell how passionate he is. Thank you for his advice — I am very happy with my “orange” purchase. Bruno des Mouettes.
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Matthieu PichardGoogle
★★★★★
10 months ago · 5/5
I bought a Seiko Batman in December, ordered it online and picked it up in the boutique. Noah was extremely responsive to messages, offered excellent advice and was very professional. He is also very friendly, and I had the pleasure of meeting him at his shop. I am really pleased with my watch, its quality and the whole experience. I wholeheartedly recommend him and will definitely do it again. There is also an absolutely stunning tourbillon watch in the boutique!
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