What is the difference with IWC - Cal 8541 & 8541B?
IWC - Cal 8541 & 8541B
- 2 replies
- last reply by Greg Steer 15 Mar 2021
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Graduate -
MasterHere are two excellent Cal 8541 resources
Thank You to Cellar and others for these:
www.gregsteer.net/IWC/Cal_85/Calibre8541Watches.htm
and
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MasterHi Gary,
The difference is the collet used, see;
For you techies --about IWC collets...
B" doesn't mean hacking
(more)If you want to see how the hairsping attaches to the collet, see;
Hairspring Week: Vibrating the
SpringHope this helps.
Cheers from the cellar