The sapphire I send to Yamaha was intended for the H558-5000 Anrie 
Got it from Yobokies.
Crystal H601: 310P13HN02
Crystal H558: 310W60GA00
http://members.chello.nl/r.herpt/Pics/Crystal_1.JPG
http://members.chello.nl/r.herpt/Pics/Crystal_2.JPG
http://members.chello.nl/r.herpt/Pics/Crystal_3.JPG
http://members.chello.nl/r.herpt/Pics/Crystal_4.JPG
H558: crystal is placed on the fat gasket and pressed down with a crystal retainer ring.
H601: crystal is pressed in the nylon gasket...
Good to know that the H558 sapphire has survived the pressing in the H601 case.
Got it from Yobokies.
Crystal H601: 310P13HN02
Crystal H558: 310W60GA00
http://members.chello.nl/r.herpt/Pics/Crystal_1.JPG
http://members.chello.nl/r.herpt/Pics/Crystal_2.JPG
http://members.chello.nl/r.herpt/Pics/Crystal_3.JPG
http://members.chello.nl/r.herpt/Pics/Crystal_4.JPG
H558: crystal is placed on the fat gasket and pressed down with a crystal retainer ring.
H601: crystal is pressed in the nylon gasket...
Good to know that the H558 sapphire has survived the pressing in the H601 case.