Seiko’s NH series stands out in the watchmaking industry. Known for their robustness and precision, these movements have become a favorite among watch enthusiasts and microbrand watchmakers alike. In this post, we will compare four popular Seiko NH movements: the NH35, NH34, NH38, and NH70. Understanding their differences can help you make an informed choice for your next watch purchase or project.
Seiko NH35
The Seiko NH35 is arguably the most well-known and widely used movement in the NH series. Here’s why it stands out:
- Specifications: The NH35 features a 21,600 beats per hour (bph) frequency, a 24-jewel count, and a power reserve of approximately 41 hours.
- Hacking and Hand-Winding: It supports both hacking (stopping the second hand when setting the time) and hand-winding, making it versatile and user-friendly.
- Date Function: This movement includes a date complication, which is a useful feature for everyday wear.
- Reliability: Known for its robustness and accuracy, the NH35 is a staple in many affordable automatic watches.
Seiko NH34
The NH34 is another reliable movement in Seiko’s NH lineup, with features that differentiate it from the NH35:
- Specifications: Similar to the NH35, it also operates at 21,600 bph and has a 24-jewel count, with a power reserve of around 41 hours.
- Hacking and Hand-Winding: Like the NH35, it supports both hacking and hand-winding.
- GMT Function: The standout feature of the NH34 is its GMT complication, allowing the wearer to track a second time zone. This makes it an excellent choice for frequent travelers and those who appreciate the added functionality of a GMT watch.
Seiko NH38
The NH38 is a variation designed for a more minimalist approach:
- Specifications: It shares the same operating frequency (21,600 bph) and jewel count (24 jewels) as the NH35 and NH34, with a similar power reserve of 41 hours.
- Hacking and Hand-Winding: The NH38 also supports hacking and hand-winding.
- No Date: The NH38 is essentially a no-date version of the NH35. This absence of a date function results in a cleaner dial design, making it ideal for those who prefer simplicity and symmetry in their watch faces.
Seiko NH70
The NH70 brings a different flair to the table with its skeletonized design:
- Specifications: Like its counterparts, it operates at 21,600 bph and has a 24-jewel count with a 41-hour power reserve.
- Hacking and Hand-Winding: The NH70 also supports both features.
- Skeletonized Movement: The most notable aspect of the NH70 is its skeletonized design, which exposes the intricate workings of the movement. This adds a unique aesthetic appeal, making it perfect for watches that aim to showcase the beauty of mechanical watchmaking.
Comparison of Seiko NH Movements
| Movement | Frequency (bph) | Jewels | Power Reserve | Hacking | Hand-Winding | Complications |
|---|---|---|---|---|---|---|
| NH35 | 21,600 | 24 | 41 Hours | Yes | Yes | Date |
| NH34 | 21,600 | 24 | 41 Hours | Yes | Yes | GMT |
| NH38 | 21,600 | 24 | 41 Hours | Yes | Yes | No Date |
| NH70 | 21,600 | 24 | 41 Hours | Yes | Yes | Skeletonized |
Conclusion
Seiko’s NH series offers a range of movements tailored to different watch styles and functionalities.
- NH35: A versatile and reliable movement with a date function.
- NH34: Ideal for those needing a GMT complication.
- NH38: Perfect for minimalist designs with a no-date feature.
- NH70: Adds visual interest with its skeletonized design.
Each of these movements carries the hallmark of Seiko’s craftsmanship, ensuring durability and precision. Whether you're a watch enthusiast looking to understand more about your timepiece or a watchmaker seeking the perfect movement for your next project, the Seiko NH series provides dependable options that cater to a variety of tastes and needs.