
NAUT MOD - BLACK (OPEN HEART)
€269.00
incl. VAT, free shipping
41 mm · NH38 Automatic · Sapphire Crystal · 316L Stainless Steel
€269.00
€269.00
incl. VAT, free shipping
You can also pay in 3 instalments with Klarna
Hand-assembled · Delivery 10–12 days after ordering
Quality takes time.
The Naut Mod Rose Gold Black Open Heart is where bold contrast meets mechanical transparency. Built on the integrated-bracelet sports watch aesthetic, this Seiko Mod from MedoMods pairs a black dial with rose-gold accents and an open-heart window that puts the beating NH38 movement on full display. The result is a watch that wears like a statement piece while remaining a capable daily driver — no quartz compromise, no flimsy movements.
Case: 41 mm stainless steel – substantial on the wrist without being bulky
Movement: Seiko NH38 automatic – hacking, hand-winding, ~41 h power reserve, 21,600 bph
Crystal: Sapphire with Super-LumiNova – scratch-resistant, legible day and night
Crown: Screw-down, 5 ATM water resistance – built for everyday wear
Bracelet: Adjustable stainless steel with butterfly safety folding clasp – secure, comfortable fit
Case back: Exhibition window
The open-heart aperture is the defining feature here: you see the front mechanism, a daily reminder that real mechanics are at work. Rose-gold PVD details against the black dial create a warm contrast that reads as dressed-up or dressed-down equally well. Every piece is hand-assembled by MedoMods, checked before it ships — no corners cut, no mass-factory assembly line. If you want an integrated-bracelet sports Seiko Mod that shows its soul, this is it.
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A Seiko mod is a modified watch that uses an authentic Seiko movement, combined with third-party high-quality parts. Most of our watches come in stainless steel with sapphire crystal.
It usually takes 10–12 days from order to delivery. The reason: we build every watch by hand only after you order it. It then goes through quality control, and only after that do we ship it. With Priority Build (an optional extra for €9.99, chosen on the product page) your watch moves to the front of the bench.
Absolutely. Send us an email with your order number and full name after ordering, stating your desired design or that you want to remove the logo. You can also leave a note at checkout, or contact us before ordering.
Yes. Every watch comes with a 2-year warranty from delivery. It covers manufacturing defects and functional problems under normal use. It doesn't cover scratches, damage from opening the watch, or water damage. If your watch is rated 5 ATM, hand-washing and rain are fine. Avoid diving, hot water and showering.
MedoMods is run by AM GbR, based in Leimen near Heidelberg, Germany. Our address and VAT ID are in the legal notice. You pay through Stripe, for example by card, PayPal or Klarna, and your card details never reach us. For deliveries to the UK, USA and Australia, we offer 14-day returns from delivery. We do not charge an additional restocking fee. We issue refunds within 4 calendar days after receiving the return. Every watch comes with a 2-year warranty. You can find our seller ratings on eBay.
We push prices down as much as we can. We believe many comparable watches are overpriced because shops bundle extras (like extra straps) into the price. We let you choose what you want, so you only pay for what you actually need.
Yes. We source from suppliers who sell authentic Seiko movements. The specific movement is listed on each model’s product page. If you suspect that your watch contains the wrong movement or a non-genuine one, contact us with your order number and a description.
Yes — all our watches are built by hand.
MedoMods · 4.6 / 5 · 17 customer reviews
MedoMods · 5.0 / 5 · 1 Customer review
„Before ordering, I worried the styling might be too bold. In person, I love the open-heart dial, the rose-gold finish, the black colour and the Naut case shape.“
Henry Walker
England
MedoMods · 5.0 / 5 · 1 Customer review
„Bei einer Mod-Uhr war ich wegen der Verarbeitung vorsichtig. Mein Blick fiel auf die Gestaltung: die Naut-Gehäuseform, die offene Zifferblattpartie, das roségoldene Finish und die schwarze Farbgebung. Die Umsetzung überzeugt.“
Moritz Neumann
Germany
MedoMods · 4.0 / 5 · 1 Customer review
„Après quelques jours, j'ai toujours un détail favori : la silhouette Naut, la finition or rose et la finition noire. La montre a du caractère sans excès.“
Louis Girard
France

The craft behind it
Every watch is assembled individually, regulated and inspected before it ships.
A look inside the workshop