Perfect your next custom build with the Genuine Japan NH38A. Specifically designed for "Open Heart" watch faces, this 24-jewel workhorse offers a clean, symmetrical look without the distraction of a date window. Whether you are building a high-end dress watch or a rugged diver, the NH38 provides legendary Seiko reliability.
Manufacturer: Seiko Instruments Inc. (TMI)
Caliber: NH38 / NH38A (Open Heart)
Movement Type: Automatic Mechanical (Self-winding + Manual winding)
Jewels: 24 Jewels
Beat Rate: 21,600 bph
Accuracy: Factory regulated for high precision
Features: Hacking (Stop-seconds), No-Date (No "Ghost" position), and Open Heart (Balance wheel visible at 9:00).
NO DATE: This movement does not have a date function. It is designed for clean dials or "Open Heart" style builds.
HANDS: Hands are NOT included. This listing is for the movement and stem only.
INCLUSIONS: Includes one (1) Genuine NH38A Movement and one (1) factory winding stem.
AUTHENTICITY: 100% Genuine Japan-made TMI movement.
No "Ghost" Click: Unlike using an NH35 for a no-date build, the NH38 crown has only one pull position. This gives your watch a more professional, luxury feel.
Open Heart Display: The balance wheel is positioned specifically to be seen through a dial window at the 9 o'clock position.
Easy Installation: Fits all standard NH-compatible cases (SKX007, SRPD, etc.) and uses the same hand sizes as the NH35/NH36.
Secure Packaging: Every movement is shipped in a shock-resistant, reinforced plastic case to protect the delicate balance assembly.
Quick Dispatch: We ship fast so you can get started on your watch project immediately
📦 Secure packaging for delicate components
⏱ Delivery within approximately 10 days nationwide IRRESPECTIVE OF LOCATION
🚚 Ships via USPS or trusted shipping partners
🔍 Tracking number provided
🔁 14-Day Return Policy (buyer pays return shipping)