Nautilus | Black (Open Heart)
Nautilus | Black (Open Heart)
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Low stock: 1 left
Status: Built to Order
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This custom‑built Nautilus‑style wristwatch is assembled in the USA using all new, high‑quality components. Featuring a striking open‑heart black dial, this model showcases the movement through a precision‑cut aperture, adding mechanical character and visual depth to the iconic Nautilus design.
Powered by the Japanese NH38A automatic movement, this watch delivers smooth, reliable performance with a clean, no‑date layout ideal for open‑heart builds. The refined 316L stainless‑steel case and integrated bracelet give the watch a modern luxury presence, while the polished center links add a premium finishing touch.
Premium components such as a sapphire crystal, transparent exhibition caseback, and 30m water resistance make this timepiece suitable for everyday wear. This open‑heart Nautilus homage is a standout piece for collectors who appreciate craftsmanship, mechanical artistry, and contemporary style.
Specifications
- Movement: Japanese NH38A Automatic (Open‑Heart, No‑Date)
- Case Material: 316L Stainless Steel
- Case Back: Transparent Stainless Steel with Crystal
- Crystal: Sapphire
- Water Resistance: 30m
- Strap: Integrated Stainless‑Steel Bracelet with Polished Center Links
Dimensions
- Case Diameter: 42.0mm (without crown)
- Case Length: 48mm (lug to lug)
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Case Thickness: 12.0mm
Free
Free
Complimentary bracelet and strap adjustment tools included with every purchase
Shipping
Shipping
- Shipping is free within the United States
- All packages are fully tracked for your convenience
- Expedited shipping is available at additional cost
Money Back Guarantee
Money Back Guarantee
Quality watches backed by a money-back guarantee.
No Brand Affiliation
No Brand Affiliation
Mod Watch Company has no affiliation or connection with Seiko or affiliated with, endorsed by, or connected to Seiko company or any of its subsidiaries.
Our timepieces are custom creations featuring movements from TMI (a Seiko Inc. subsidiary) renowned for its accuracy and dependability and used in millions of watches worldwide.
Our timepieces are independent products and are not in any way associated with Seiko.
Frequently Asked Questions
Why buy a Mod Watch Company watch?
We take pride in crafting timepieces of the highest quality.
Our expert watchmakers and high-quality materials position us as a rival to luxury Swiss watch brands. Unlike competitors that rely on dropshipping from abroad, we manufacture and dispatch from our Florida watch studio.
This enables us to perform the quality control that others may overlook. We inspect all components before and after the assembly of your customized watch.
How long does it take to build the watch?
If your watch is labeled "In Stock" above, we typically ship it out in 2-3 business days. If the watch you have chosen is marked as "Back Ordered" above, it will enter a queue for our skilled watchmakers to meticulously handcraft. Please allow 2 to 3 weeks for this process.
What is the cost of shipping and how long will it take?
We offer complimentary shipping on all of our timepieces. This process typically requires 3 to 8 business days. Expedited delivery choices are available for a additional charge. Please be aware that these are estimates and are contingent on the courier.
What if I'm not happy with my watch, can I return it?
If you're not completely satisfied with your new timepiece, we have a 14-day satisfaction guarantee. You can confidently return it within 14 days of delivery.
Does my new watch come with a warranty?
Feel secure with our 12-month Warranty starting from the purchase date. More details available here!
Secure Payments
Brand Independence
Mod Watch Company has NO affiliation or connection with Seiko or endorsed by, or connected to Seiko Company or any of its subsidiaries.
Our timepieces are custom creations featuring movements from TMI a subsidiary of Seiko (renowned for its accuracy and dependability and used in millions of watches worldwide)
Our timepieces are independent products and are not in any way associated with Seiko.