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Seiko Day-Date Style Day Mod - Black Arabic

40.5 mm / NH35 automatic / Jubilee

40.5 mm · NH35 Automatic · Sapphire Crystal · 316L Stainless Steel

€259.00

incl. VAT, free shipping

You can also pay in 3 instalments with Klarna


Hand-assembled · Delivery 10–12 days after ordering

Quality takes time.

  1. Ordered
  2. Built
  3. Checked
  4. Shipped

eBay seller rating: 94.4% positive117 ratings181 watches soldAs of Oct 10, 2026

Description

Black with a sunburst finish and silver numerals in Arabic-Indic script: the DAY MOD - BLACK ARABIC is the highest-contrast watch among the models with Eastern Arabic numerals. It runs on an NH35 automatic movement with a date display, with the date at 3 o'clock. There is no day-of-the-week display. At 12 o'clock there is a window with Arabic script. The 316L stainless steel case measures 40.5 mm, a fluted bezel frames the dial, and it sits on a five-row Jubilee bracelet.

The black is anything but flat. Fine rays run from the centre to the edge, and tilted into the light the deep black turns into a dark anthracite with a bright wedge travelling across it. On top sit the Eastern Arabic numerals in silver, cleanly drawn and easy to read from most angles. The result is a watch that suits a dark suit just as well as jeans and a leather jacket, at the office during the week and at a restaurant table on the weekend.

Within the line, black is the quietest tone. The two blue sisters with the same script, one baby blue and one royal blue, bring colour into play and sit in 40 mm cases. The grey Arabic DAY MOD shares the 40.5 mm size and the Jubilee bracelet with this watch but sets stones on a grey gradient. If you are after clear numerals on a dark ground, this is the one.

The black in numbers

  • Case: 316L stainless steel, 40.5 mm across, approximately 12 mm tall, 20 mm between the lugs; the fluted bezel adds structure without adding visual bulk
  • Movement: Seiko NH35 automatic with a date display, wound by the motion of the wrist; hand-winding and hacking seconds are on board, the power reserve is approximately 41 hours at a beat of 21,600 bph
  • Crystal: sapphire, scratch-resistant and anti-reflective, so the black dial stays readable in bright light
  • Bracelet: Jubilee in 316L stainless steel, five rows with polished centre links
  • Water resistance: 5 ATM

Assembled at MedoMods

Hand-assembled by MedoMods and tested before shipping. Free worldwide shipping with tracking.

Ordering and delivery

  • 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.
  • 10–12 days after ordering
  • 14-day returns. The period starts on receipt. For deliveries to the UK, US and Australia, we offer 14-day returns.

Specifications

Case
40.5 mm
Crystal
Sapphire Crystal
Water resistance
5 ATM
Movement
NH35 AutomaticAutomatic: winds itself as you wear it, no battery.
Case
40.5 mm
Crystal
Sapphire CrystalFar more scratch-resistant than mineral glass.
Material
316L Stainless Steel
Water resistance
5 ATMHand washing, rain: yes. Diving, showers, sauna: no.
Dial
Black Dial

Shipping & delivery

  • Standard shipping is free, whatever the order value.
  • Every piece is built to order. Delivery worldwide takes an estimated 10–12 calendar days from order.
  • Priority Build is an optional extra for €9.99, chosen on the product page: your order is prioritized in production.
  • Within the EU, no import duties and no import VAT apply.
  • Customs duties and import charges are included in the price, also for delivery outside the EU, for example to Switzerland, Norway, the UK or the USA.
  • Once your order has shipped, you’ll receive the tracking number by email.

Shipping and delivery times

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Returns & warranty

  • Our refund policy explains the 14-day right of withdrawal and our additional 14-day return offer from receipt for deliveries to the UK, USA and Australia.
  • For a regular return, you arrange and pay for return shipping. We do not charge an additional restocking fee.
  • We issue refunds within 4 calendar days after receiving the return.
  • The statutory warranty rules apply.

Returns and cancellation · Terms

FAQ

What is a Seiko mod?

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.

Can I customize the logo or remove it?

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.

Do you use genuine Seiko movements?

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.

Find answers about ordering, care and service in our FAQ.

Manufacturer & product safety

Manufacturer
AM GbR, trading as “MedoMods”, Danziger Straße 6, 69181 Leimen, Germany
info@medomods.com
Product
Day Mod - Black Arabic
A hand working on an open watch movement with tweezers

The craft behind it

Assembled by hand.Workshop in Germany.

Every watch is assembled individually, regulated and inspected before it ships.

A look inside the workshop
2-Year Warranty
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