
MARINER MOD - DEEPSEA BLUE
€259.00
incl. VAT, free shipping
40 mm · NH35 Automatic · Sapphire Crystal · 316L Stainless Steel
€259.00
€259.00
incl. VAT, free shipping
You can also pay in 3 instalments with Klarna
Dial
Hand-assembled · Delivery 10–12 days after ordering
Quality takes time.
Roman numerals on a sport-diver dial should not work — but on the Seikomariner Ice Blue Roman, they absolutely do. The ice blue base colour is pale and luminous, sitting closer to glacial aquamarine than traditional navy, and the Roman hour markers play off that coolness with a surprisingly refined energy. The result is a 40 mm Seiko mod that crosses the line between sport and style more convincingly than most watches twice its price.
The NH35 automatic movement supports hand-winding and hacking seconds. The seconds hand stops while you set the time, allowing precise adjustment.
The 40 mm case is approximately 12 mm thick. Sapphire crystal protects the dial; these dimensions and the crystal specification are listed in the technical details below.
Ice blue as a dial colour is underused in the mod space. It has a freshness that pure navy lacks, and it photographs beautifully in natural light — a faint shimmer under direct sun, a calm even tone indoors. The Roman numerals add a vintage-dressy note that sets this variant clearly apart from the indexed alternatives in the Seikomariner lineup. Choose the With Logo or No Logo variant depending on how you prefer the dial to read.
The 40 mm case pairs its sporty shape with the pale ice-blue dial. The black strap provides a darker contrast.
MedoMods assembles the watch and checks it before dispatch. See the shipping terms for delivery information and possible import charges.
Case diameter: 40 mm (excluding crown)
Thickness: approx. 12 mm
Movement: Seiko NH35 Automatic – hacking & hand-winding
Crystal: Sapphire, anti-scratch
Case: 316L Stainless Steel
Water resistance: 5 ATM
Secure payment
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 · 4.1 / 5 · 12 customer reviews
MedoMods · 5.0 / 5 · 1 Customer review
„Ich war unsicher, ob die Gestaltung live so gut aussieht. Ein Punkt hat mich positiv überrascht: die römischen Ziffern, der eisblaue Ton und die sportliche Diver-Optik.“
Luisa Neumann
Germany
MedoMods · 5.0 / 5 · 1 Customer review
„Je me posais des questions sur la finition d'une montre modifiée. Un détail rassurant : le style plongeuse, les chiffres romains et le bleu glacier.“
Léa Roux
France
MedoMods · 4.0 / 5 · 1 Customer review
„Después de varios días sigo teniendo un detalle favorito: el estilo de buceo, los números romanos y el tono azul hielo. Tiene carácter sin exagerar.“
Mateo Moreno
Spain

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