Real light. Real depth.
We choose dials that keep a clean shine and an even texture in sunlight.
Controlled reflections · never “plastic”
Nauteiko Openheart Blue
No
Sale price
$449.00
Regular price
$565.00
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![Rotor]()
Nauteiko Openheart Blue
SERVICE · GUARANTEES
Shipping
Fast
Legal
Guarantee
Payment
Secure
Support
Fast
Sale price
$449.00
Regular price
$565.00
An unboxing built for the moment
Everything you need is already in the box
Premium presentation box
$29 FREE
Microfiber cleaning cloth
$9 FREE
Sizing tool kit
$14 FREE
Total you save today
$52
No matter where you are, we cover all customs duties and import taxes — you'll never be charged extra at delivery.
Overview
• 904L
• Sapphire
• Automatic
The Nauteiko Openheart Blue stands out for its blue dial with open-heart window, allowing you to appreciate the automatic movement in full action, bringing dynamism and elegance. The 41 mm case in 904L stainless steel offers solid and refined finishing, while the contrast between the intense blue dial and silver details conveys a contemporary and exclusive style.
Designed for those seeking a striking yet sophisticated watch, this design combines highest quality materials with reliable mechanics. The 904L steel bracelet ensures resistance and durability, the scratch-resistant sapphire crystal maintains impeccable clarity, and the original Seiko NH38 automatic movement guarantees precision and reliability, visible through its open-heart window.
Technical specifications
· Diameter: 41 mm (without crown), perfect balance on the wrist
· Movement: Original Seiko NH38 automatic, reliable and visible in the open-heart
· Thickness: 12.5 mm, elegant and versatile profile
· Crystal: Scratch-resistant sapphire with anti-reflective coating
· Luminosity: Luminova on hands and indices, excellent night visibility
· Case: 904L stainless steel, durable and premium finishing
· Crown: Screw-down, functional and secure
· Dial: Blue with open-heart window, sophisticated and distinctive
· Wrist size: Adjustable between 14.5 cm and 22 cm
· Lugs: 20 mm, ideal for interchangeable straps
· Bracelet: 904L stainless steel with security clasp
· Case back: Closed steel, discreet and robust
· Water resistance: 3 ATM, suitable for daily use and splashes
What’s included
- Watch assembled & inspected
- Warranty card
- Protective packaging
Shipping & returns
Insured, tracked shipping. You have 30 days from delivery to return your watch, even if it was configured to your specification; if it arrives faulty or is not what you ordered, we fix it fast at no cost.
FAQ
Is it ready to wear when it arrives?
Yes—assembled, inspected and shipped to your door.
How long does shipping take?
10–15 business days. Your watch goes through assembly, checks and final inspection before shipping.
Can I return it if I change my mind?
Yes. You have 30 days from delivery to return it, even if it's a configured watch.
What does the warranty cover?
The Roman Watches commercial warranty covers the movement and the assembly for 3 years. In addition, and independently of it, the legal guarantee of conformity — 2 years in the EU, 3 years in Spain — covering the movement, assembly and materials under normal use: we repair or replace at no cost. It does not cover water ingress: water resistance is 3 ATM (rain and splashes, no swimming, diving or showering), and a watch with moisture inside is not covered.
Will the watch look exactly like the photos?
Yes. The configuration and finish are exactly as shown in the photos.
Can I change my configuration after ordering?
If you contact us quickly, we’ll do our best to update it before processing.
ROMAN WATCHES
Details you can see and feel.
Short videos, no filters: real light, real steel, real presence.
Worked steel, not for show.
Clean polishing, straight brushing and defined edges: you feel it.
Premium polished/brushed contrast
Everyday wear, no fuss.
Made to come along: rain and splashes. A watch is meant to be worn.
Water resistant · built for real routine
The final test: the wrist.
Proportion, shine in natural light and presence in motion.
Premium presence without the bling
ROMAN WATCHES
What changes when you buy here
| Roman Watches | Typical mod stores | |
|---|---|---|
| Steel | 904L | 316L typically |
| Crystal | Sapphire | Sapphire or mineral |
| Warranty | 3 years + legal guarantee | Often none |
| Returns | 30 days, including configured watches | “All sales final” common |
| Customs | None: duties & taxes prepaid | Customs and import VAT on you |
| Delivery | 10–15 working days | 3–6 weeks typically |
Compared with common practice among independent mod sellers.
ESTIMATED DELIVERY
10–15
working days
Preparation
Final check
Tracked shipping
Mon–Fri (excl. holidays). During peak periods the timeline may vary slightly.