Custom Nautilus Mod | Black (Open Heart)
🟦 Custom Nautilus Mod | Black | Open Heart | NH38A Automatic | 42mm
This custom‑built Nautilus‑style wristwatch is assembled in the USA using all new, high‑quality components. Featuring a striking open‑heart black dial, this model showcases the movement through a precision‑cut aperture, adding mechanical character and visual depth to the iconic Nautilus design.
Powered by the Japanese NH38A automatic movement, this watch delivers smooth, reliable performance with a clean, no‑date layout ideal for open‑heart builds. The refined 316L stainless‑steel case and integrated bracelet give the watch a modern luxury presence, while the polished center links add a premium finishing touch.
Premium components such as a sapphire crystal, transparent exhibition caseback, and 30m water resistance make this timepiece suitable for everyday wear. This open‑heart Nautilus homage is a standout piece for collectors who appreciate craftsmanship, mechanical artistry, and contemporary style.
Specifications
Movement: Japanese NH38A Automatic (Open‑Heart, No‑Date)
Case Material: 316L Stainless Steel
Case Back: Transparent Stainless Steel with Crystal
Crystal: Sapphire
Water Resistance: 30m
Strap: Integrated Stainless‑Steel Bracelet with Polished Center Links
Dimensions
Case Diameter: 42.0mm (without crown)
Case Length: 48mm (lug to lug)
Case Thickness: 12.0mm