Интересная статья ("First silicium escapement from Jaeger-LeCoultre") о моделях с кремниевыми спусками:
http://www.thewatchavenue.com/qh/?Code=TEC&ID=506
Mechanical manually-wound movement, calibre 947R, assembled and decorated by hand with two-week power reserve and silicon escapement © Jaeger-LeCoultre
Master Grande Tradition Tourbillon à Quantième Perpétuel © Jaeger-LeCoultre
Master Grande Tradition à Répétition Minutes © Jaeger-LeCoultre
