The Seiko Instruments NH35 is one of the most common automatic movements in affordable mechanical watches, but the watches built around it can feel very different on the wrist. Case size, crystal, bezel, water resistance and overall design matter at least as much as the movement itself.
This guide compares five currently listed NH35 watches at Watchdives for different priorities: compact field-watch proportions, 36mm everyday wear, 40mm dive-watch versatility and a larger 43.8mm diver. All five were active with at least one available variant when this guide was prepared; stock can change, so check each product page for current availability.
If you want the movement details first, read our NH35 movement guide. If you want to browse more mechanical models, see the automatic watches collection.
Quick comparison: 5 current NH35 watches
| Model | Case size | Crystal | Water resistance | Best suited to |
|---|---|---|---|---|
| Thorn SHY030 | 36mm | K1 mineral with AR | 200m | Compact field / military style |
| Cronos L6019 | 36mm | Sapphire with AR | 100m | Compact everyday wear |
| Addiesdive H9 | 40mm | Sapphire with blue AR | 200m | All-round automatic diver |
| Thorn SHY042 | 40mm | Sapphire | 200m | Steel-bracelet diver |
| Addiesdive AD2045 | 43.8mm | Synthetic sapphire | 200m | Larger dive-watch proportions |
1. Thorn SHY030 — a compact 36mm NH35 field watch
The Thorn SHY030 is the smallest watch in this group. Its 36mm stainless-steel case is paired with a Japan NH35 automatic movement, K1 mineral crystal with AR coating, a screw-down crown and a nylon strap.
It is also unusual for a compact military-style watch because the current listing specifies 200m water resistance. The case is 46mm lug-to-lug and 14mm thick including the crystal, with an 18mm strap width. C3 green lume is used on the dial and hands.
Choose it if: you want an NH35 watch with genuinely compact diameter and a field / military look rather than a conventional dive-watch bezel.
2. Cronos L6019 — a 36mm everyday NH35 automatic
The Cronos L6019 is another 36mm option, but it takes a different approach. It uses a flat sapphire crystal with clear AR coating, a stainless-steel bracelet and a thinner 11.55mm listed case thickness.
The current specification lists 100m water resistance, a screw-down crown and BGW9 blue lume. Its 43.4mm lug-to-lug dimension makes it the shortest-wearing option in this comparison.
Choose it if: you want a compact NH35 automatic for everyday use with sapphire crystal and bracelet rather than a tool-watch strap setup.
For more compact options across other movements, see our best watches for small wrists guide.
3. Addiesdive H9 — a straightforward 40mm NH35 dive watch
The Addiesdive H9 moves into classic dive-watch territory. It combines a 40mm 316L stainless-steel case with the NH35, sapphire crystal with blue AR coating, a 120-click ceramic bezel, screw-down crown and 200m water resistance.
The current listing also specifies C3 green lume and a 20mm lug width. Steel-bracelet and leather-strap configurations are listed.
Choose it if: you want a conventional 40mm automatic diver with sapphire crystal and ceramic bezel without moving into a larger case.
4. Thorn SHY042 — a 40mm steel-bracelet NH35 diver
The Thorn SHY042 is also 40mm, but its specification is different from the Addiesdive H9. It uses a sapphire crystal, stainless-steel bezel insert, solid stainless-steel bracelet and transparent sapphire case back.
The listing specifies 200m water resistance, a screw-down crown, BGW9 blue lume, 47.8mm lug-to-lug and 13.6mm thickness including the crystal.
Choose it if: you prefer a steel-bracelet diver and want to see the movement through a transparent case back.
5. Addiesdive AD2045 — a larger 43.8mm NH35 diver
The Addiesdive AD2045 is the largest option here at 43.8mm. It uses the NH35, a synthetic sapphire crystal, unidirectional stainless-steel bezel, screw-down crown and case back, solid steel bracelet and 200m listed water resistance.
Its listed dimensions are 47.2mm lug-to-lug, 14mm thick including the crystal and 20mm between the lugs. BGW9 blue lume is specified.
Choose it if: you prefer more wrist presence and want a larger automatic diver rather than a compact 36–40mm case.
Which NH35 watch should you choose?
Start with case size and intended use rather than choosing by movement alone:
- For a compact military / field style: Thorn SHY030.
- For a compact everyday automatic: Cronos L6019.
- For a conventional 40mm diver: Addiesdive H9.
- For a 40mm steel-bracelet diver: Thorn SHY042.
- For a larger 43.8mm diver: Addiesdive AD2045.
The NH35 gives these watches a common movement platform, but their fit and specifications are not interchangeable. Compare the exact case dimensions, crystal, bezel, water-resistance rating and strap or bracelet before ordering.
NH35 watches vs other automatic movements
There is no reason to choose a watch only because it uses an NH35. Other current watches at Watchdives use movements such as Miyota 9015 / 90S5, PT5000, ST2130 and Hangzhou calibres. The right choice depends on the watch as a complete product, not only the movement name.
Browse more automatic watches, or compare purpose-built models in the dive watches collection.
Frequently asked questions
Is the NH35 a good automatic movement?
The NH35 is widely used in affordable automatic watches and supports hand-winding and hacking seconds. For a deeper explanation of its specifications and ownership considerations, see our complete NH35 movement guide.
Are all NH35 watches dive watches?
No. The movement does not determine whether a watch is suitable for water use. In this comparison, some models are divers while the Cronos L6019 is positioned more as a compact everyday automatic. Always use the individual watch's stated water-resistance specification.
What size NH35 watch is best for a smaller wrist?
Case diameter is only one part of fit, but the 36mm Thorn SHY030 and 36mm Cronos L6019 are the smallest choices in this comparison. Lug-to-lug, thickness and strap or bracelet geometry also affect how a watch wears.
