Seiko Nautilus ”Open Heart” Mod

Seiko  Nautilus “Open Heart” Mod

Modern, mechanical, and effortlessly versatile — the Seiko Automatic “Open Heart” blends contemporary sports-watch design with the timeless charm of a visible movement. With its brushed and polished stainless steel case, integrated bracelet, and light-patterned dial, this 40mm automatic delivers both everyday wearability and a touch of horological intrigue.

Specifications:

Movement: Seiko Automatic — self-winding mechanical movement with visible balance wheel

Case: 40mm stainless steel — brushed surfaces with polished accents

Bezel: Fixed stainless steel bezel — clean, modern profile

Dial: White dial with grid texture, applied indices, luminous hands, and open-heart window at 9 o’clock

Crystal: high quality Sapphire glass

Bracelet: Integrated stainless steel bracelet — brushed outer links, polished center accents, solid construction

Case Back: Transparent exhibition case back — see the rotor and movement in action

Water Resistance: 3 BAR (30 Meter) Can withstand minor moisture from splashing, but should not be worn for swimming, diving, bathing, or showering

Details That Impress:

• Open-heart design — see the beating heart of the movement

• Automatic movement — powered by your wrist, no battery needed

• Integrated bracelet — seamless transition from case to strap for a sleek look

• Exhibition case back — mechanical beauty on full display

The Seiko Nautilus “Open Heart” mod is made for those who appreciate both design and craftsmanship. It’s sharp enough for the office, durable enough for daily wear, and offers the captivating view of a mechanical movement — right on your wrist.

Mechanical soul. Modern style. Built for everyday moments.