Rotor Noises: Train Your Ear
Author: Funny Items
Release time: 2026-08-25 22:05:29
View number: 16
Normal Sounds vs Warning Signs
Automatic rotors make sounds — but which are normal and which predict failure? Here is the ear training.
Normal NH35 Rotor Sounds
- Gentle whirring during wrist movement — the rotor spinning freely
- Slight clicking when winding manually — pawl engagement
- Audible winding sweep when shaking gently — normal freewheel
Warning Sounds
| Sound | Likely Issue |
|---|---|
| Grinding or scraping | Rotor rubbing caseback or movement ring — seating issue |
| Rhythmic ticking while wearing | Bent rotor or debris caught under it |
| Loud rattling | Loose screw inside movement — service urgently |
| Silence where winding resistance should be | Winding mechanism failure |
The Quick Diagnosis
- Remove the watch, hold near your ear in a quiet room
- Rotate it slowly in circles — listen to rotor freewheel
- Smooth whoosh = healthy. Anything rhythmic or metallic = open it up
Movement internals overview in our jewels guide; when opening is warranted in the servicing guide.
Frequently Asked Questions
Miyota movements sound louder — defective?
No — Miyota rotors famously "whirl" louder; it's design character, not defect. See our comparison guide.