NH36 vs 7S26 Movements: A Comparative Analysis of Seiko's Reliable Workhorses

NH36 vs 7S26 Movements: A Comparative Analysis of Seiko's Reliable Workhorses

When it comes to reliable and robust automatic watch movements, Seiko is a name that often comes to mind. Among their lineup, the NH36 and 7S26 movements stand out as workhorses powering a wide range of timepieces. In this blog post, we'll delve into the details of these two movements, exploring their similarities, differences, and what makes each one special.

NH36 Movement: The NH36 is a descendant of the Seiko 7S family of movements, specifically designed to address some of the limitations of its predecessor. It's a part of Seiko's "NH" series, which includes movements derived from the 7S base.


  1. Hacking: One significant upgrade NH36 offers over 7S26 is the inclusion of hacking. This means that when you pull out the crown to set the time, the seconds hand stops, allowing for precise time-setting.
  2. Hand Winding: Unlike the 7S26, the NH36 supports manual winding, enabling users to power the watch by turning the crown.
  3. Day and Date Functionality: Both movements offer day and date complications, making them practical for everyday use.

Accuracy: The NH36 is known for its improved accuracy compared to the 7S26. While both movements are generally reliable, the NH36 tends to have tighter tolerances and better regulation, leading to more consistent timekeeping.

Customization: One of the notable aspects of the NH36 is its popularity among watch modders. Due to its compatibility with aftermarket parts and accessories, such as different dials, hands, and bezels, watch enthusiasts often choose NH36-powered watches for customization projects.

7S26 Movement: The 7S26 movement has been a staple in Seiko watches for decades, renowned for its durability and affordability. While it lacks some of the features found in the NH36, it remains a popular choice for entry-level and mid-range timepieces.

Durability: Seiko designed the 7S26 movement to withstand the rigors of daily wear and tear. Its robust construction and simplicity contribute to its longevity, making it a dependable choice for those seeking a low-maintenance timepiece.

Affordability: One of the key advantages of the 7S26 movement is its affordability. Watches equipped with this movement are often priced competitively, making them accessible to a wide range of consumers.

Legacy: The 7S26 movement has a rich heritage, having powered iconic Seiko models such as the SKX007 diver's watch. Its reliability and timeless design have earned it a loyal following among watch enthusiasts and collectors alike.

Conclusion: In conclusion, both the NH36 and 7S26 movements have their strengths and weaknesses, catering to different preferences and budgets. The NH36 offers enhanced features such as hacking and hand winding, making it a favorite among enthusiasts who value customization and precision. On the other hand, the 7S26 excels in durability and affordability, making it an excellent choice for everyday wear. Whether you opt for the advanced capabilities of the NH36 or the proven reliability of the 7S26, you can trust in Seiko's commitment to quality and craftsmanship.

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