Genuine Seiko (TMI) NH35A Automatic Movement - White Date

Reliable Seiko (TMI) NH35A Movement – Perfect for Watch Modding

The Seiko (TMI) NH35A movement is the undisputed workhorse of the watch modding community. Whether you are building a custom diver, repairing a daily watch, or upgrading a vintage piece, this TMI-manufactured movement delivers unmatched reliability, aftermarket compatibility, and exceptional value.

Stocked in Calgary, Canada, each movement ships in its original hard-plastic protective case, ensuring that the rotor, balance wheel, and pinions arrive in flawless, ready-to-case condition. No more waiting weeks for international shipping—get your watch running quickly with a quality, reliable engine.

⚙️ Choose Your Spec

• Factory Standard: Straight from the TMI factory line. Operates within standard Seiko factory specifications (-20 to +40 seconds per day). Perfect for budget builds or DIYers who want to practice regulating on their own.
• House-Regulated (Premium): Before shipping, we place the movement on our timegrapher right here in Calgary. We manually adjust the beat error and regulate the rate to a much tighter tolerance (typically within +/- 5 to 10 seconds per day). Highly recommended for premium builds.

🛠️ Key Features

• Hacking & Hand-Winding: Stop-seconds mechanism for precise time setting and manual winding capability
• Flawless Compatibility: Standard for aftermarket dials, hands, and cases, perfect for modding or repairs
• Protective Casing: Ships securely in a hard plastic shell, never loose in a bag
  Ready-to-Use: Includes factory temporary winding stem plus 1 extra stem
• Bench-Tested Precision: Opt for the House-Regulated variant for immediate, out-of-the-box accuracy.

📦 What You Get

• 1x Genuine Seiko NH35A Movement
• 1x Factory Temporary Winding Stem + 1x Extra Stem
• If House-Regulated: A screenshot/slip of your movement's actual timegrapher reading showing its dialed-in performance.