Har en gang opplevd at en hovedfjær bare ryker, dette var uten at klokken var trukket for mye opp eller noen form for slag/fall. Den særeste ulykken jeg har blitt utsatt for i alle fall![]()
Du mener den "balance spring"... Ja den kan ryke.
Omega og en del andre har "free balance spring" nå. De tåler mer enn disse som er knyttet på begge ender...Så de sier.

"The Co-Axial escapement and the free sprung-balance
The OMEGA Co-Axial escapement is used in conjunction with a free sprung-balance. The timepiece’s rate can be adjusted by modifying the moment of inertia of the balance wheel instead of changing the active length of the hairspring via the index. This adjustment is made with gold micro screws embedded in the circular balance wheel. This construction with the Co-Axial escapement and the free sprung-balance improves shock resistance and avoids disturbances."
http://www.omegawatches.com/press/press-kit-text/1678