Collection: Seiko (SII) NH70A/71A Automatic Movement

The Seiko (SII) NH70A/71A Automatic Movement represents a pinnacle of precision and functionality, ideal for watchmakers and enthusiasts looking to build or enhance high-performance timepieces. Designed with advanced features and robust reliability, the NH70A/71A movements offer an exceptional timekeeping experience for a wide range of custom watch projects.

Key Features:

• 25-Jewel Automatic Movement: Delivers smooth, accurate timekeeping with enhanced durability, minimizing friction and extending the movement’s lifespan.
• Date and Day Functionality: Features a dual date and day complication, providing both the current day of the week and date, which adds practical functionality to your timepiece.
• 50-Hour Power Reserve: Offers an extended power reserve, ensuring reliable performance and accurate timekeeping even after prolonged periods of non-wear.
• Hand-Winding and Hacking Capabilities: Includes manual winding to maintain the movement’s power and hacking to precisely set the time by stopping the second hand.
• Vibration Frequency: Operates at 21,600 vibrations per hour (3 Hz), balancing accuracy with durability to meet the demands of high-functionality watches.

The NH70A/71A Automatic Movement is perfect for those seeking a versatile and high-performing movement for their custom watch builds. With its advanced features and Seiko's renowned reliability, the NH70A/71A ensures a timepiece that combines both precision and practicality.

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