
Seikomariner | Custom Diver Mod Blue “Ocean” Dial
€259.00
incl. VAT, free shipping

€259.00
incl. VAT, free insured shipping
Your build:
Case back
14-day returns · Ships from Germany · 2-year warranty
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The Mariner Mod Deepsea Blue is a sport-diver Seiko mod built for people who want genuine dive-watch character without the five-figure price tag. Its deep-ocean blue dial pulls your eye immediately — a rich, saturated tone that reads differently under tungsten light than it does in full sun, giving the watch a restless depth that flat colours never achieve. The bidirectional bezel lets you track elapsed time the way a real dive instrument should, and the 40 mm stainless steel case sits squarely in the sweet spot between wrist-filling presence and all-day comfort.
Inside sits the Seiko NH35 automatic movement — hacking, hand-winding, roughly 41 hours of power reserve, 21,600 bph. It is the same workhorse found in watches costing three or four times more, and it earns that reputation every day. Every unit leaves the MedoMods bench regulated and function-tested before it ships.
The 40 mm case is machined from stainless steel, polished where it should be polished, brushed where it should be brushed. The screw-down crown keeps the rated 5 ATM splash and rain resistance intact under daily conditions. Up top, a sapphire crystal with anti-reflective coating keeps glare out and legibility in — at any angle, in any light.
Deepsea Blue is not a generic navy. It is the particular shade you see at twenty metres below the surface — cool, saturated, with just enough luminance to glow under Super-LumiNova indices. Applied hour markers and hands are loaded with lume for confident low-light reading. The bidirectional bezel adds a functional, sporting edge without making the watch look like it is trying too hard.
Available on a stainless steel bracelet or a rubber strap — both fitted with a safety folding clasp. The bracelet gives the Mariner a polished sport look; the rubber strap makes it feel like proper beach or pool kit. Case back is your choice: exhibition sapphire if you want to watch the rotor spin, or solid steel for a cleaner silhouette.
Every Mariner Mod is hand-assembled by MedoMods in Germany. EU-warehouse shipping means no customs surprises and no weeks of waiting — and you receive a watch built by someone who treats the craft seriously, not a production line optimising for throughput. If you have ever wanted a diver that genuinely earns its look, this is it.
Case: 40 mm stainless steel – balanced and elegant
Movement: Automatic Seiko NH35 – reliable and precise
Crystal: Sapphire with anti-reflective and scratch-resistant coating – clear readability
Luminosity: Super-LumiNova – excellent visibility in the dark
Crown & Water Resistance: Screw-down crown, 5 ATM – secure and suitable for everyday wear
Bezel: Bidirectional – perfect for tracking multiple time zones
Strap: Adjustable, available in stainless steel or rubber with a safety folding clasp
Case Back: Transparent or solid stainless steel – depending on preference
Every watch is hand-assembled, regulated and inspected after your order. Delivery usually takes 12–15 days — with Priority Build (€9.99, selectable at checkout) your watch moves to the front of the bench. Insured shipping with tracking from Germany. 14-day returns and a 2-year movement warranty.
MedoMods is an independent maker and is not affiliated with or endorsed by Seiko, Rolex, Patek Philippe, Audemars Piguet or any other brands mentioned. Third-party model names are used descriptively (homage style) only.
MARINER MOD - DEEPSEA BLUE
€259.00 · Clear case back