Naut Mod - Black

The Naut Mod Black draws its design DNA from the porthole — that round, riveted window found on the hull of ocean-going ships. The rounded octagonal case, the horizontally textured dial, the robust integrated bracelet: together they form one of watchmaking's most distinctive integrated-bracelet sport silhouettes, reinterpreted here by MedoMods as a hand-assembled Seiko mod. This is not a lookalike — it is a careful craft build that takes inspiration from a naval aesthetic and makes it entirely its own through careful component selection and assembly.

Movement

The Naut Mod Black runs the Seiko NH35 automatic — a movement renowned in the modding community for its reliability, serviceability, and smooth winding rotor. Hacking seconds and manual winding are both supported, making time-setting precise and practical. With approximately 41 hours of power reserve the watch keeps running through a weekend of inactivity. The exhibition case back reveals the movement in full.

Case & Crystal

The 41 mm stainless steel case integrates seamlessly into the bracelet — one of the defining characteristics of this design language. A screw-down crown delivers 5 ATM water resistance, making the watch suitable for everyday wear. The sapphire crystal resists scratches and comes with Super-LumiNova application, ensuring the dial stays legible when light drops. The butterfly safety folding clasp on the bracelet holds firmly throughout the day without the bulk of a traditional deployant.

Dial & Design

The black horizontal-striped dial catches directional light in a way that makes the watch look different in morning sun versus indoor fluorescent — a visual dynamism that flat-painted dials simply cannot replicate. Applied baton indices and a date window at three o'clock complete a dial that is structured and purposeful without feeling busy. The overall blacked-out palette keeps the design contemporary and versatile across dress codes.

On the Wrist

The integrated bracelet tapers gracefully from 41 mm at the case to a comfortable wrist-hugging width at the clasp. The adjustable steel links allow the fit to be dialled in precisely, and the butterfly clasp provides confidence during active wear. Wrist coverage is substantial — this is a watch that makes its presence known — but the clean lines prevent it from feeling overwhelming even on a slender wrist.

Why MedoMods

Hand-assembled, individually regulated and tested before dispatch, the Naut Mod Black is a Seiko mod that punches well above its price. Worldwide shipping with tracking – within the EU free of customs surprises. For anyone drawn to the porthole-inspired integrated-bracelet sport aesthetic but unwilling to spend what Swiss houses charge for it, this is a compelling, honest alternative built around a proven Japanese automatic movement.

• Case: 41 mm stainless steel – timeless and stylish

• Movement: Automatic Seiko NH35 – precise and reliable

• Crystal & Luminosity: Sapphire crystal with Super-LumiNova – clear visibility and excellent readability

• Crown & Water Resistance: Screw-down crown, 5 ATM – suitable for everyday wear

• Bracelet: Adjustable stainless steel with butterfly safety folding clasp – comfortable and modern

• Case Back: Exhibition window – elegance down to the finest detail

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.