# Credits and acknowledgements

## Movement documentation

**Time Module (TMI)** — the four NH35 documents provided for this project: NH35_SS (specification and dimensioned drawings), NH35_TG (technical guide and parts catalogue), NH35_PL (parts list), and NH35_OM (operation manual).

- [TMI document download centre](https://www.timemodule.com/en/download_support/)
- [NH35 specification and drawings](https://www.timemodule.com/uploads/attachments/download/Spec%20Sheet/NH35_SS.pdf)
- [NH3 technical guide](https://www.timemodule.com/uploads/attachments/download/Technical%20Guide/NH35_TG.pdf)
- [NH35 product variants](https://www.timemodule.com/en/product_code_search/?code=NH35)

Individual PDF URLs may redirect when the manufacturer updates its website. The original PDFs supplied with the project remain the dimensional source of record. References are acknowledged, not relicensed by this project.

## First-hand visual research

**でかポチ, author of 時計De娯楽 (watch.danman.jp)** — the photographic teardown series used to understand component appearance and assembly context:

- [Calendar mechanism](https://watch.danman.jp/remove-calendar-ring-nh35)
- [Main train](https://watch.danman.jp/remove-main-mechanism-nh35)
- [Setting mechanism](https://watch.danman.jp/remove-setting-mechanism-nh35)

No photographs from these articles are bundled or displayed in the explorer.

## Mechanism explanation

**Seiko Epson Corporation** — [Magic Lever Technology](https://corporate.epson/en/technology/overview/wearable/magic-lever.html), a reference for the automatic winding principle. No article illustrations are bundled.

**The Seiko Museum Ginza** — [The Big Role of the Tiny Magic Lever](https://museum.seiko.co.jp/en/knowledge/trivia04/), an additional research reference; the page was not consistently retrievable during research.

## Software

**three.js authors**, copyright © 2010–2024 — Three.js r169 and OrbitControls. Distributed under the MIT License. The complete required notice is retained in [vendor/THREE-LICENSE.txt](vendor/THREE-LICENSE.txt); source license headers are preserved.

## Project contribution and scope

The procedural 3D geometry, website interface and educational timing model were created for this NH35 explorer. No third-party CAD asset is included. Watch hands and their chapter marks are explanatory accessories, not manufacturer-supplied movement components.

The published NH35 beat rate establishes six beats per second and three complete balance oscillations per second. Hand speeds follow their timekeeping relationships; the date indicator cycles through 31 positions. Internal train ratios, wheel tooth counts, spring deformation, escapement contact and the winding demonstration are illustrative. No force, energy, friction or collision solver is implemented. The initial time/date are a demonstration, not a live civil-time clock.

The reference authors and manufacturers have not endorsed or sponsored this project. Their names identify the sources used; their material remains subject to its original rights and terms.