Real light. Real depth.
We choose dials that keep a clean shine and an even texture in sunlight.
Controlled reflections · never “plastic”
Nauteiko Openheart Black Silver
No
Sale price
$449.00
Regular price
$565.00
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Nauteiko Openheart Black Silver
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 Black Silver is a watch with a striking and contemporary style. Its 904L stainless steel case with black coating brings an elegant and bold character, while the black dial with silver details and open-heart window reveals the automatic movement in action, creating a spectacular contrast.
With a design that is both sophisticated and sporty, this timepiece becomes a unique piece for those seeking exclusivity and personality on their wrist. The resistance of 904L steel, the scratch-resistant sapphire crystal, the luminosity on hands and indices, and the reliable original Seiko NH38 automatic movement make this watch a perfect fusion of aesthetics and performance.
Technical specifications
· Diameter: 41 mm (without crown), ideal for a contemporary and balanced style
· Movement: Original Seiko NH38 automatic, reliable and visible in the open-heart window
· Thickness: 12.5 mm, comfortable for daily wear
· Crystal: Scratch-resistant sapphire with anti-reflective treatment
· Luminosity: Luminova on hands and indices, perfect for low light
· Case: 904L stainless steel with black coating, robust and elegant
· Crown: Screw-down, secure and functional
· Dial: Black with silver details and open-heart window
· Wrist size: Adjustable between 14.5 cm and 22 cm
· Lugs: 20 mm, compatible with different straps
· Strap: 904L stainless steel with black finish and security clasp
· Case back: Solid steel, discreet and robust
· Water resistance: 3 ATM, perfect 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.