Rotor noise, clicking, grinding — which sounds are often normal, and which usually need service. Educational triage only.
• Many automatics have an audible rotor. Soft swoosh can be normal.
• A sudden change in sound matters more than the mere presence of sound.
• Grinding while winding is not a “character” noise — treat it seriously.
• Setting clicks can be normal; crunching resistance is not.
Phone mics and human hearing are imperfect. This tool sorts likely bands; it cannot hear your watch.
Is automatic rotor noise normal?Often yes, especially a soft swoosh when the wrist moves. Loud new rattling is more concerning.
Why does my watch click when I set the time?Light calibrated clicks can be normal. Painful resistance or grinding is not.
Watch grinds when winding — bad?Yes, treat grinding on the wind as a service issue, not something to force through.
Can dried oil change the sound?Yes. Service-due movements can sound different and run less cleanly.