Miyota 8215 vs. NH35: A Detailed Examination of Two Popular Watch Movements

When it comes to choosing a watch movement for your timepiece, there are numerous options available in the market. Among the many choices, the Miyota 8215 and NH35 movements stand out as popular choices for watchmakers and enthusiasts alike. In this article, we will take a close look at these two movements, comparing their features, performance, and advantages.

Miyota 8215: A Reliable Workhorse

The Miyota 8215 is a Japanese automatic movement produced by Citizen Watch Co. Ltd., a renowned name in the watchmaking industry. This movement has gained popularity for its reliability and robustness, making it a preferred choice for many watch brands.

Key Features of the Miyota 8215

  1. Reliability: One of the standout features of the Miyota 8215 is its reliability. It is known for its accuracy and ability to keep time consistently over long periods.
  2. Smooth Sweep Seconds Hand: The Miyota 8215 movement offers a smooth sweeping seconds hand motion, which is often preferred by watch enthusiasts over the ticking motion found in quartz movements.
  3. Self-Winding: This movement is automatic, meaning it is powered by the motion of the wearer’s wrist. This eliminates the miyota 8215 movement  for a battery, making it a more sustainable option.
  4. Date Function: The Miyota 8215 includes a date complication, adding practicality to your timepiece.

NH35: A Competitor from the East

The NH35 movement, on the other hand, is produced by the Japanese company TMI (Time Module Inc.), a subsidiary of Seiko Instruments Inc. This movement has gained recognition for its affordability and versatility, making it a popular choice among microbrands and small watch companies.

Key Features of the NH35

  1. Affordability: The NH35 is often chosen by microbrands and startups due to its cost-effectiveness, allowing them to offer quality watches at more affordable price points.
  2. Robust Design: The NH35 is known for its durability, making it suitable for both sports and dress watches. It can withstand daily wear and tear.
  3. Hacking and Hand-Winding: Unlike some Miyota movements, the NH35 offers both hacking (the seconds hand stops when setting the time) and hand-winding capabilities, which are appreciated by watch enthusiasts.
  4. Customizable: The NH35 is customizable, allowing watchmakers to modify it to suit their specific design and functional requirements.

A Head-to-Head Comparison


Both the Miyota 8215 and NH35 movements are known for their accuracy. However, individual watches may vary in performance due to factors such as assembly quality and regulation.

Power Reserve

The Miyota 8215 typically has a power reserve of around 42 hours, while the NH35 boasts a slightly longer reserve of approximately 41 hours.


The NH35 is generally more budget-friendly compared to the Miyota 8215, which can be a crucial factor for watchmakers working with tight budgets.


In the Miyota 8215 vs. NH35 showdown, both movements have their unique strengths and are suitable for different watchmaking purposes. The Miyota 8215 is revered for its reliability and smooth sweep seconds hand, making it an excellent choice for traditional automatic watches. On the other hand, the NH35 is favored for its affordability, durability, and customization options, making it a preferred choice for microbrands and startups.

Ultimately, the choice between these two movements depends on the specific needs and preferences of the watchmaker or watch enthusiast. Both movements have proven their worth in the horological world, and the decision should align with the desired characteristics of the final timepiece. Whether you prioritize precision, cost-effectiveness, or customization, both the Miyota 8215 and NH35 have something to offer in the world of watch movements.

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