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Jaeger-LeCoultre

Technical question...

 

Hi Purists,
I noted that in all the Reversos Grand Taille beating at 21600 v/h (or less) there's the shock absorber on the escapment wheel too. Then I saw that in the new XGT Reverso bearing the new 8 days - 28800 v/h calibre the shock absorber on the escapment wheel is missing.
So the question is: they did so for space reasons (ie no space for the device on the escapment too) or for technical issues, since I also noted that in almost all the movements beating at 28800 v/h (not only JLC but AP, ecc. as well) there's no shock absorber on the escapment wheel but simply the counter pivot stone?
Please, forgive me if this is a stupid question!
Any response will be much appreciated.
Kind regards,
Pacio.

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