I read this in an article with With Stefan Ihnen:
"Tell me about the chronograph coupling mechanism in the cal. 59360 -- I see something that appears to be a rocking pinion, which is a really reliable and robust alternative to the classical lateral clutch wheel. I really admire the hybrid clutch system of the cal. 89361, which has both friction clutch for the seconds and lateral clutch from the barrel for the others. Was it impractical to incorporate a friction clutch in the 59360? "
Can somebody enlighten me regarding the chronograph coupling mentioned here. I have only heard so far of vertical, horizontal and oscillating pinion coupling.
Would love to know more about this.
Thanks, Denes