










Seiko Naut, automatic movement
Tax included.

Seiko Nautilus
The Seiko Nautilus embodies the maritime spirit with a design conceived for modern adventurers . Combining elegance and robustness , each piece pays homage to ocean explorers , driven by passion and determination . Its Seiko NH35 automatic movement guarantees exceptional precision , making this watch a true work of fine watchmaking .
Far from conventional standards, the Seiko Nautilus stands out with its unique style , inspired by sea voyages , navigational instruments , and high-performance materials . Whether for intense exploration or facing the challenges of everyday life , it offers unwavering reliability and a distinctive character .
More than just an accessory, this watch is the ideal companion for those seeking a perfect balance between performance and elegance , both in everyday life and during extraordinary adventures .
Features :
- Movement: Seiko NH35 automatic, 24 jewels, quick date setting, manual winding and hacking function.
- Case: Stainless steel, 40 mm.
- Glass: Sapphire.
- Bracelet: Navy blue silicone with machined clasp.
- Waterproofing: Tested up to 150m.
- Warranty: 2 years.
- A model designed for those who wish to push their limits with style and precision .
- Seiko movement.
- Sapphire crystal.
Your Chrono122 watch is designed to withstand everyday conditions : rain, splashes, light humidity… no worries for normal use.
However , if you plan to expose it to more demanding situations, such as swimming or prolonged immersion, be sure to be vigilant:
⚠️ Always remember to screw the crown back on tightly before use to ensure watertightness and protect the movement from any water infiltration.
Chrono122 is among the leaders in France in the creation of personalized automatic watches .
Located in northern France, our workshop hand-assembles each component to create unique watches, crafted with care and precision.
We offer the best quality/service/price ratio on the market , supported by a responsive local team and more than 200 satisfied customers .
With Chrono122 , you are guaranteed to receive a custom-made watch , true to your expectations, delivered within 48 hours for models in stock and within 15 days for personalized creations.
- Home delivery: within 48 hours, fee applies.
- Delivery to a collection point: Free, 3 to 6 days.
Delivery within 48 hours
French Workshop
2-year warranty
Performance and expertise
Seiko movement
Powered by a precise automatic movement, offering over 41 hours of autonomy and reliability praised by watch enthusiasts.
Waterproof and reliable
Dive in with confidence — our watches offer 10ATM water resistance and durability designed for everyday wear.
High-quality 904L stainless steel.
904L stainless steel, renowned for its exceptional resistance and used by the biggest watchmaking houses.
Sapphire crystal glass
Sapphire crystal — perfect clarity, exceptional durability and scratch resistance
FAQ
Frequently Asked Questions
What is a Seiko mod?
A Seiko Mod is an authentic Seiko watch that has been customized with high-quality watch components (dial, hands, bezel, etc.). It's a unique watch, designed for enthusiasts who are looking for a distinctive design.
Is it legal to buy a modified watch?
Absolutely! Buying a modified Seiko isn't illegal, especially if the seller is transparent about the modifications. As long as the watch is clearly sold as a modified watch and not an original model, you have the right to buy it without worry.
Are the watches you sell authentic?
Yes, all our watches are equipped with a Seiko movement made in Japan, guaranteeing exceptional quality and precision. Furthermore, our designs are inspired by luxury watches from renowned brands, combining elegance and sophistication to satisfy even the most discerning tastes.
Are they guaranteed?
All our models come with a 2-year warranty.
Customer service is available 24/7, by email, phone, or via the website's chat box.
Are you affiliated with Seiko?
No. Chrono122 is not affiliated with Seiko. We use this brand only to describe the origin of the components used in our creations.
What are the delivery times?
- Home delivery within 48 hours (charges apply).
- Delivery to the collection point in 3 to 6 days.
- For pre-orders, the delivery time can be up to 15 days .
