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SEIKO MOD Nautilus | Or Rose "Open Heart"

SEIKO MOD Nautilus | Or Rose "Open Heart"

Best price now

$228.77at Maison ModsChecked Nov 9

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Price facts

  • Last seen at $228.77 at Maison Mods on Nov 9.

Our take on the SEIKO MOD Nautilus | Or Rose "Open Heart"

This is a custom-built watch: a Nautilus-style 40mm stainless steel case in rose gold tone, fitted with a Seiko NH35 automatic movement and an open-heart dial that shows the balance wheel. It adds a scratch-resistant sapphire crystal and 120m water resistance, which is more than most Seiko mods offer. It suits buyers who want the Nautilus look and a visible movement without paying integrated-bracelet sports-watch money. Against stock Seiko automatics it trades factory warranty and service support for the styling and the open dial.

Best forBuyers who want the Nautilus look at mod pricesFans of open-heart dials and visible movementsWearers who want a 40mm automatic for daily useCollectors of Seiko-based custom builds
Pros
  • Seiko NH35 automatic: proven, easy to service, hacking and hand-winding
  • Sapphire crystal resists scratches
  • 120m water resistance is high for a mod build
  • 40mm case wears well on most wrists
  • Open-heart dial shows the running movement
Cons
  • Custom build, not a factory Seiko: no Seiko warranty
  • Rose gold-tone plating can wear over time
  • Nautilus-style case is a homage, not the real thing
  • Open-heart cutout can divide opinion
  • Water resistance depends on the builder's seals and testing

SEIKO MOD Nautilus | Or Rose "Open Heart" prices at every store

  • Maison ModsNew

    In stockShips from France · priced in EUR (€204.90) · duties may applyReturn policy

    $228.77Checked Nov 9
    Visit Maison Mods

About the SEIKO MOD Nautilus | Or Rose "Open Heart"

This is a Seiko mod watch in a Nautilus-style design, in a rose gold finish with an open-heart dial. It has a 40 mm stainless steel case.

It is powered by a Seiko NH35 automatic movement. The crystal is scratch-resistant sapphire. Water resistance is rated to 120 meters (12 ATM).

Movement
Seiko NH35 automatic
Case material
316L stainless steel
Case size
40 mm
Crystal
Scratch-resistant sapphire
Water resistance
120 meters / 12 ATM

Questions and answers

Is the NH35 a good movement?
Yes. It is a workhorse automatic with about 41 hours of power reserve, hacking and hand-winding. It is widely used in affordable watches and easy for a watchmaker to service or replace.
Is this a real Seiko?
No. It is a custom mod built around a Seiko NH35 movement in a Nautilus-style case. Seiko does not make or warrant it.
Can I swim with it?
It is rated to 120m, but on a custom build that rating depends on the caseback, gaskets and crown being properly sealed and tested. Have a watchmaker pressure-test it before swimming.
How does it compare with a stock Seiko automatic?
You get sapphire and an open-heart dial, which stock Seikos at this level usually lack. You give up factory warranty and service support.
What is the case size?
40mm in 316L stainless steel. That is a mid-size sports watch that fits most wrists.
Where is the SEIKO MOD Nautilus | Or Rose "Open Heart" cheapest?
At Maison Mods, for $228.77, as of our latest check.

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