Nautiko | (Open Heart) Chocolate

The SEIKNAUT MOD Nautilus Open Heart Chocolate blends refined elegance with a mechanical showcase. The rich chocolate brown dial, combined with its striped texture, brings warmth and sophistication, while the open-heart window reveals the beating Seiko NH38 movement beneath — a perfect fusion of style and horological character.Crafted with a polished 316L stainless steel case and bracelet, this model offers a modern integrated design, complemented by a vibrant tonal contrast between steel and chocolate dial. A true statement piece for those who appreciate both aesthetics and the beauty of mechanical engineering.

✅ Case Size: 41mm
✅ Case Thickness: 12mm
✅ Case Material: 316L Stainless Steel
✅ Dial: Chocolate brown with striped texture and open-heart cutout
✅ Crystal: Sapphire crystal with anti-reflective coating
✅ Movement: Seiko NH38 Automatic (open-heart)
✅ Water Resistance: 5 ATM (50 m)
✅ Bracelet: Integrated stainless steel bracelet
✅ Bracelet Color: Silver
✅ Lug Width: 22mm
✅ Caseback: Exhibition (open) stainless steel
✅ Functions: Hours, minutes, seconds

Processing Time: 2–4 business days
Standard Shipping: 7–12 business days
Express Shipping: 3–7 business days
Worldwide tracking included

Each watch is made to order. Assembly takes 3–5 business days before dispatch; delivery typically takes an additional 7–15 business days.

Tracked worldwide shipping is free. Read the destination details in our shipping policy.

Return conditions and exceptions for custom orders are explained in our returns policy.

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