-10% on non-sale items with the discount code MOM10
SEIKO 5 MILITARY NYLON 21 JEWELS
Original price was: € EUR425.00.€ EUR335.00Current price is: € EUR335.00. ( € EUR279.17 excl. EU VAT)
Since the manufacture of its first mechanical watch in 1895, Seiko Watch Corporation has continued to perfect its expertise in the development of the finest watches. Today, the brand manufactures each piece of its watches : alloy, spring, balance, movement, dial, hands and case.
19 sold
Only 1 left in stock
At your place from May 20, 2025
30-day return policy
Weight | 0.15 g |
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Dimensions | 9.9 × 8.4 × 8.3 mm |
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Discover this beautiful Seiko 5 SNK807K2 also know as the Military Nylon 21 Jewels. A timepiece for gentleman. Simple, class and practice.
This automatic watch is characterized by a round stainless steel case with blue dial, perfectly matching the Nylon strap.
Very present in the Seiko House, the glass of this model is made of Hardlex, a more resistible material than the classic mineral glasses that we find in the entry-level model. The 21 Jewels automatic movement is well known for its reliability and durability.
Note the presence of an opening on the back revealing the mechanism in its entirety… Enjoy
Frequently Asked Questions

When will I receive my order ?
Here are the average delivery times that we offer:
- After validation, your order is processed within 12 working hours
- Products in stock are shipped the same day before 5 p.m. during weekdays
- Products to be supplied are shipped within 2 to 5 days
The shipping time will then depend on the delivery method of your choice (Fedex, UPS, DHL etc.). You will receive email notifications to track the delivery of your package. For real-time tracking, check out our order tracking page.
Why should I trust Conteenium?
With more than 10 years of experience in online watchmaking and jewelry, Conteenium has built a solid reputation. Company registered since 2014, we have made excellence in customer service our priority with a team available by email, telephone, WhatsApp and Messenger.
Our transparency is praised by more than 1,500 customer reviews with an average rating of 4.6/5 on Trustpilot and Google Reviews. Trusting Conteenium is the assurance of a worry-free, quality purchase!
If I am not satisfied with my order, what happens?
Your satisfaction is our number #1 priority. This is why we offer you 30 days to return any item that does not suit you. The process is simple:
- Contact our customer service
- Return the item in its original packaging
- In the event of an exchange, you will receive a credit to order another product
- In the event of a refund, you will be credited within 24 hours of receipt
Is it true that Conteenium offers a 3 year warranty instead of 2?
Yes, that's correct! Since January 2024, we have extended the manufacturer's warranty from 2 to 3 years on all of our products. This decision demonstrates our confidence in the quality of the watches and jewelry that we select for you. It's also an additional guarantee of our long-term commitment to our customers.
Can we pay later or in installments?
For orders between $100 and $1,500, you can choose from several convenient payment plans:
- Split the total into 2, 3, or 4 equal installments
- Pay the full amount 15 days after the order date (D+15)
- Pay the full amount 30 days after the order date (D+30)
Select the option that best suits your preference and budget.
5 reviews for SEIKO 5 MILITARY NYLON 21 JEWELS
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David –
Nice watch
Love it, love the lightness of it. Really recommand
Adrien J. (verified owner) –
Superb watch, very light and yet very solid.
The automatic mechanism is very precise and does not require too frequent adjustments.
The watch arrived on time and the box was in perfect condition. The team at Conteenium.com even had the good idea to include a package of Haribo’s candy in the box!
Simon (verified owner) –
Very satisfied with my purchase. Nothing to complain about. It is perfect for summer with its nylon strap.
Thank you
Stéphane M. (verified owner) –
Very nice watch, my first automatic, light, fine, nice to see the mechanism from the rear.
Did not catch up in a month, being worn.
not carried 36h took 2 min delay. This is tolerable.
Leather bracelet bought at the same time in case but for the moment I still love the original one in nylon. Maybe later.
The automatic watch service is top: delivered in less than 4 days, without surprise except candy in gifts, with the warranty sheet completed and signed. All this at a very reasonable rate.
Louis D. –
I am simply very satisfied with your customer service. the delivery time is top (thank you for the passage for the Haribo candy!).
As for the watch it is simply beautiful!