Mariner Mod - Black

The Mariner Mod Black is MedoMods' take on the classic dive-watch silhouette — a form that has earned its place on wrists from ocean floors to city offices over six decades. At 40 mm the all-black stainless steel case sits right in the sweet spot: present enough to command attention, compact enough to disappear under a dress-shirt cuff. Every component is hand-selected and assembled, making this a genuinely personal piece rather than something pulled from a factory line.

Movement

Inside beats the Seiko NH35 automatic, one of the most trusted movements in the mod community. It hacks — the seconds hand stops the moment you pull the crown, so synchronising to the second is effortless — and it winds by hand whenever the rotor is not doing the work. With roughly 41 hours of power reserve and a 21,600 bph beat rate it keeps reliable pace with daily life.

Case & Crystal

The 40 mm stainless steel case is secured by a screw-down crown rated to 5 ATM — comfortable for hand-washing, rain, and everyday splashes. The sapphire crystal combines an anti-reflective treatment with a scratch-resistant coating, keeping the dial legible at any angle without accumulating the micro-scratches that plague mineral glass over time. The bidirectional bezel is a functional touch, equally useful for timing a parking interval or a meeting.

Dial & Lume

The all-black colour treatment runs consistently from bezel to dial to hands, punctuated by Super-LumiNova lume plots that glow a cool blue-green in the dark. The result is a monochromatic, stealthy aesthetic that reads just as clearly on a grey winter morning as it does under a bar's dim lighting. No unnecessary colour break disrupts the tension — just clean geometry and sharp, legible indices.

On the Wrist

It comes on an Oyster metal bracelet.

Why MedoMods

Each Mariner Mod is hand-assembled and individually inspected before it leaves our workshop. EU customers receive the watch free of unexpected customs charges — no import surprise waiting at the door. If you have been looking for a serious dive-style Seiko Mod that combines genuine NH35 movement quality with a striking all-black aesthetic, this is the piece that delivers on both counts.

• 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 intervals and time zones

• Strap: Oyster metal bracelet
• Case back: clear case back

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 withdrawal period. The period starts on receipt. For deliveries to the UK, US and Australia, we offer 14-day returns.