SeikoNaut Homage - Open Heart

A sleek, modern take on the classic integrated sports watch design. The black open-heart dial adds depth and character, giving you a glimpse into the movement in action while keeping the overall look clean and refined. Finished with an integrated bracelet and hidden butterfly clasp, it’s a balanced piece that feels both sporty and elegant. ⚫✨

The Details

• Movement: Seiko NH38 Automatic Open Heart (hand-winding & hacking) ⚙️
• Case: 39mm stainless steel
• Thickness: 11.5mm
• Lug Width: Not applicable (integrated design)
• Bezel: Stainless steel bezel
• Crystal: Scratch-resistant sapphire crystal 💎
• Dial & Hands: Black open-heart dial
• Strap: Integrated stainless steel bracelet with butterfly milled clasp
• Water Resistance: Case rated for 100m (pressure tested to 50m)

Built To Order ⏳

Each watch is built to order over a 2–4 week period. This time is essential for us to carefully source high-quality parts and hand-assemble your watch to our standards. We don’t mass produce — every piece is made with attention to detail and care.

A Personal Touch 🎨

Because we build these ourselves, we can customise your watch to suit your style. Whether it’s a different dial, hands, or bracelet — if you’ve got something in mind, reach out and we’ll make it happen.

Disclaimer

This watch is a custom-built timepiece using a Seiko automatic movement and aftermarket parts. It is not affiliated with any brands.