-10% on non-sale items with the discount code XMAS10
MAISON DU TEMPS WATCH MTDELTA OPEN HEART BLUE STEEL
$ 447.00 ($ 372.50 excl. EU VAT)
Each watch is meticulously designed and assembled, reflecting a commitment to precision, quality, and style. Maison du Temps offers a diverse range of watches, from classic to modern styles, appealing to collectors and enthusiasts alike.
With a focus on timeless elegance and innovation, Maison du Temps is the go-to brand for those seeking premium watches that stand the test of time. Discover the perfect balance of form and function with Maison du Temps.
In stock
⛟ At your place from December 25, 2025
⏱️ Delivery guaranteed before Christmas
🎄 Returnable after December 24th
| Weight | 0.25 g |
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| Dimensions | 11.5 × 9.4 × 7.3 mm |
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Maison du Temps MTDELTA Open Heart Blue Steel Watch
A perfect blend of elegance and horological craftsmanship
The Maison du Temps MTDELTA Open Heart Blue Steel Watch embodies the union of modern refinement and precise watchmaking engineering. Its 316L stainless steel case, with brushed and polished finishes, reveals a deep blue open-heart dial, offering a striking view of the movement that drives this exceptional timepiece. The scratch-resistant sapphire crystal and transparent case back add prestige and transparency to this finely crafted model.
The beauty of the open-heart movement
Powered by the Miyota 82S5 automatic movement, the MTDELTA Open Heart Blue Steel elegantly displays its internal mechanics through a delicately crafted opening. Precise and reliable, it offers a 40-hour power reserve, showcasing mastered technical expertise. Every oscillation becomes a spectacle, celebrating the art of time in all its complexity.
A watch designed to last and impress
With 10 ATM (100 meters) water resistance and a stainless steel deployant clasp bracelet, this watch combines durability and comfort. Its balanced weight of 175 g and 40 mm diameter make it a harmonious piece, both pleasant to wear and admire. Elegant, high-performing, and timeless, it stands as a symbol of horological excellence for the modern man.
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.
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