- SATISFIED OR REFUNDED
- 3 Years Warranty
Summer Sale – Until August 31 st
310.00$
3 Years warranty included
Leather watch box gift + tool kit
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The Seiko Mod Nautilus Open Heart adds a captivating element to the iconic design with a visible movement through the open heart dial. Hand-assembled in France and powered by the Seiko NH35 automatic movement, this 41mm timepiece merges luxury, craftsmanship, and mechanical beauty in one package.
•Hand-assembled in France for meticulous craftsmanship.
•Powered by the Seiko NH35 automatic movement with a visible open heart design.
•Sapphire crystal with anti-reflective treatment for durability and clarity.
•316L brushed stainless steel case and bracelet for a modern and durable finish.
•Horizontal striped dial with an open heart for a mechanical showcase.
•Waterproof & tested for reliable performance in various conditions.
•Backed by a 3-year warranty and 30-day satisfaction guarantee.
Buy it now or Customize your own for a luxurious, mechanically sophisticated timepiece.
The Seiko Mod Nautilus offers a modern take on one of the most iconic luxury watch designs of all time. Featuring a distinctive horizontal striped dial and brushed 316L stainless steel case and bracelet, this timepiece captures the essence of the original Nautilus while incorporating modern watchmaking techniques.
Seiko Mod Nautilus Open Heart – A Fusion of Mechanical Beauty and Iconic Design
The Seiko Mod Nautilus Open Heart brings together the elegance of the Nautilus design with the mesmerizing beauty of its mechanical heart. The open heart dial allows you to admire the inner workings of the Seiko NH35 automatic movement, while the signature horizontal striped dial retains the refined look of the original Nautilus. This 41mm timepiece is perfect for watch enthusiasts who appreciate both aesthetic design and mechanical artistry.
Key Features:
•Seiko NH35 Automatic Movement: Ensures accurate timekeeping with the added visual appeal of the open heart design.
•Sapphire Crystal: Scratch-resistant and treated with anti-reflective coating for optimal clarity.
•Open Heart Dial: Showcases the movement’s intricate mechanics, adding depth and interest to the design.
•316L Brushed Stainless Steel Case & Bracelet: Provides durability with a sleek, modern finish suitable for everyday wear.
•Horizontal Striped Dial: Maintains the classic Nautilus aesthetic while offering a modern twist.
•Waterproof & Tested: Designed to perform in daily environments, ensuring long-lasting reliability.
Each watch is hand-assembled in France, reflecting our dedication to craftsmanship. Backed by a 3-year warranty, after-sales service, and a 30-day satisfaction guarantee, this timepiece offers both style and peace of mind.
Buy it now or Customize your own to experience the perfect balance of luxury and mechanical ingenuity.
The Seiko Mod Nautilus Open Heart features a stunning green horizontal striped dial with an open heart window at the 9 o’clock position, allowing a glimpse of the watch’s internal mechanics. The brushed 316L stainless steel case and bracelet give the watch a refined yet modern appearance, while the sapphire crystal ensures protection. At 41mm in diameter, this timepiece strikes a balance between bold design and wearability, making it suitable for both formal and casual settings.
Did You Know?
Did you know that the open heart design showcases part of the movement’s escapement, a crucial component in regulating the timekeeping mechanism of an automatic watch? The open heart feature not only enhances the visual appeal but also allows watch enthusiasts to appreciate the craftsmanship and engineering behind the automatic movement.
Fun Fact: The original Nautilus, designed by Gérald Genta, was inspired by the shape of a ship’s porthole, leading to its unique rounded octagonal case and integrated bracelet design.
The Seiko Mod Nautilus Open Heart adds a captivating element to the iconic design with a visible movement through the open heart dial. Hand-assembled in France and powered by the Seiko NH35 automatic movement, this 41mm timepiece merges luxury, craftsmanship, and mechanical beauty in one package.
•Hand-assembled in France for meticulous craftsmanship.
•Powered by the Seiko NH35 automatic movement with a visible open heart design.
•Sapphire crystal with anti-reflective treatment for durability and clarity.
•316L brushed stainless steel case and bracelet for a modern and durable finish.
•Horizontal striped dial with an open heart for a mechanical showcase.
•Waterproof & tested for reliable performance in various conditions.
•Backed by a 3-year warranty and 30-day satisfaction guarantee.
Buy it now or Customize your own for a luxurious, mechanically sophisticated timepiece.
| Bezel | 904L Stainless Steel |
|---|---|
| Case | 904L Stainless Steel |
| Diameter | 41mm |
| Age Group | Adult |
| Categories | Watch |
| Color | Black, Silver |
| Inspiration | Nautilus |
| Luminova | Yes |
| Water Resistance | 3 ATM |
| Wrist Size | 14,5cm to 22cm |
| Warranty | 3 Years |
| Thickness | 12mm |
| Movement | NH35 |
| Gender | Unisex |
| Glass | Sapphire |
| Lugs | 25x12mm |
Take no risks. If you’re not fully satisfied with your purchase, you can return it within 30 days. This guarantee starts from the moment you receive your package
Premium watch box
Sizing tool for adjustmentsLivraison
Guarantee Card
Standard (4-8 days): Free
Priority (3-5 days)
Express (24-72 hours)
Shipping fees vary based on destination, and delivery time is calculated after assembly is completed.
All our watches come with a 3-year warranty on the movements. You can also opt for an extended warranty when placing your order.
Every watch undergoes thorough testing before shipping.
Simply include your wrist size in the order instructions, and we’ll size the watch perfectly for you. This option is available for metal link bracelets only.
All our watches come with simple tools to allow you to adjust the size yourself if needed.
The Seiko Mod Submariner Vintage model brings the iconic look of the past to life, featuring vintage-inspired yellowed Luminova markers, an aluminum bezel, and a classic plexiglass crystal. Hand-assembled in France and powered by the trusted Seiko NH35 automatic movement, this timepiece fuses timeless design with modern reliability.
•Hand-assembled in France for superior craftsmanship.
•Powered by the Seiko NH35 automatic movement for reliable performance.
•Plexiglass crystal (upgradeable to sapphire) for an authentic vintage look.
•Luminova markers and aluminum bezel evoke the charm of classic Submariner models.
•Waterproof & tested to ensure durability.
•Backed by a 3-year warranty and 30-day satisfaction guarantee.
Buy it now or Customize your own for a piece of history with modern precision.
Discover the Seiko Mod Submariner, inspired by the legendary Submariner design and featuring the reliable Seiko NH35 automatic movement. Hand-assembled in France, this 40mm timepiece combines precision, durability, and timeless elegance.
•Hand-assembled in France for ultimate craftsmanship.
•Powered by the Seiko NH35 automatic movement for reliable and accurate timekeeping.
•Sapphire crystal with anti-reflective treatment for superior protection.
•904L stainless steel case & bracelet for a durable, luxury finish.
•Waterproof & tested for optimal performance.
•Backed by a 3-year warranty and 30-day satisfaction guarantee.
Buy it now or Customize your own for the perfect blend of luxury and functionality.
Discover the perfect fusion of iconic style and superior craftsmanship with the Seiko Mod Daytona. Featuring a genuine Seiko VK63 movement and a handcrafted assembly in France, this watch ensures precision and durability, built to last with high-end materials and stringent testing.
•Hand-assembled in France for unmatched craftsmanship and attention to detail.
•Genuine Seiko VK63 movement, combining automatic and quartz for reliable performance.
•Sapphire crystal offers superior scratch resistance and clarity.
•904L stainless steel case & bracelet for enhanced durability and luxury feel.
•Waterproof & tested for timekeeping precision and protection from the elements.
Why Choose Time Madness?
•Customization options for your perfect timepiece.
•3-year warranty and after-sales service for peace of mind.
•Powered by genuine Japanese Seiko movements, tested for both waterproofing and timekeeping precision.
Buy it now or Customize your own for a truly personalized timepiece.
Discover the perfect fusion of iconic style and superior craftsmanship with the Seiko Mod Daytona. Featuring a genuine Seiko VK63 movement and a handcrafted assembly in France, this watch ensures precision and durability, built to last with high-end materials and stringent testing.
•Hand-assembled in France for unmatched craftsmanship and attention to detail.
•Genuine Seiko VK63 movement, combining automatic and quartz for reliable performance.
•Sapphire crystal offers superior scratch resistance and clarity.
•904L stainless steel case & bracelet for enhanced durability and luxury feel.
•Waterproof & tested for timekeeping precision and protection from the elements.
Why Choose Time Madness?
•Customization options for your perfect timepiece.
•3-year warranty and after-sales service for peace of mind.
•Powered by genuine Japanese Seiko movements, tested for both waterproofing and timekeeping precision.
Buy it now or Customize your own for a truly personalized timepiece.
You are about to become a watch designer. Start by picking an iconic model and then turn it into a one-of-a-kind timepiece that reflects your unique taste. You will pick out your watch’s case, dial, second hand, and band. Time’s a wast’n, get started.
Need Help
In the context of watches, a “mod” (short for modification) refers to customizing a watch to alter its appearance or functionality. This can include changing the dial, hands, bezel, crystal, strap, or even the movement of the watch. Mods are popular among enthusiasts who want to create a unique or personalized timepiece. Seiko watches are particularly favored for modding due to their robust construction, affordable price point, and the wide availability of compatible aftermarket parts.
Yes, you can adjust the size of the watch band yourself. Most watch bands come with adjustable links or holes to accommodate different wrist sizes. At Time Madness, we offer the option to adjust the band size before shipment upon request, and we also provide the necessary tools with each watch for your convenience.
Here are the general steps for adjusting different types of bands:
Metal Bracelet Bands:
Tools Needed: Spring bar tool and a micro screwdriver (provided with your purchase).
Remove Screws:
•Identify the screws on the side of the bracelet links that need to be removed.
•Use the micro screwdriver to carefully unscrew and remove the screws.
•Take out the necessary number of links to adjust the band to your desired size.
Reattach the Band:
•Align the remaining links and reinsert the screws.
•Tighten the screws securely with the micro screwdriver to ensure the band is properly fastened.
•Organization: Keep the removed screws and links in a safe place in case you need to readjust or reattach them in the future.
•Professional Help: If you’re unsure or uncomfortable with the process, consider taking your watch to a professional jeweler or watchmaker.
At Time Madness, we offer free shipping on all orders. We ship from France using Colissimo, a reliable postal service. Below are the estimated delivery times for various regions:
| Region | Estimated Delivery Time |
| France (Domestic) | 2-3 business days |
| Europe | 5-7 business days |
| North America | 7-10 business days |
| South America | 10-15 business days |
| Asia | 10-15 business days |
| Australia & Oceania | 10-15 business days |
| Africa | 10-20 business days |
Important Notes:
Processing Time: Orders are typically processed within 1-2 business days.
Custom Manufacturing: If an item is not in stock or requires custom manufacturing, creation takes approximately 2-4 business days, depending on the complexity.
Tracking: All shipments include a tracking number, which will be provided once your order has been dispatched.
Customs & Duties: There are no customs fees for deliveries within the European Union. For international orders, we do our best to ship in a way that avoids customs fees, but in rare cases they do occur and are the responsibility of the customer.
If you have any questions or need further assistance regarding shipping, feel free to contact our customer service team. We’re here to help ensure your shopping experience with Time Madness is seamless and enjoyable.
Yes, you can design your own watch at Time Madness! We offer a large variety of cases, movements, hands, dials, and bezels in different sizes and colors. Additionally, we can create custom dials, add personalized logos, and engrave messages. The only limit is your imagination. Whether you want a unique timepiece for yourself or a special gift for someone else, we can help you bring your vision to life.
Yes, all our watches are original. At Time Madness, we pride ourselves on offering high-quality, authentic watches. While we specialize in modding Seiko and other brands’ watches, some parts we use are custom-made. The movements in our watches are always original, and depending on the parts selected, they are either from Seiko or custom-made by reputable suppliers. Our custom components are crafted with precision to ensure that each timepiece meets our stringent quality standards, providing you with a unique and reliable watch that combines originality with personalized customization.
A 3 o’clock or 4 o’clock dial refers to the position of the crown (the small knob used to set the time) on the watch face.
3 o’clock Dial: The crown is positioned at the 3 o’clock mark on the watch face. This is the most common placement and is typically found on many traditional watch designs.
4 o’clock Dial: The crown is positioned at the 4 o’clock mark. This placement is often used for ergonomic reasons, as it can be more comfortable for the wearer, especially when the watch is worn on the left wrist.
Both 3 o’clock and 4 o’clock dials offer unique aesthetic and functional benefits, allowing you to choose the style that best suits your preferences and comfort.
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From our Workshop in South of France
904L Stainless Steel l Sapphire Crystal I Genuine Seiko Movement
