>>2044725After doing more research, I am going to be seeing 日本語 in my sleep tonight but I have narrowed what model Ritsu's phone is to three possibilities -
SE W52S -
http://ja.wikipedia.org/wiki/W52S>available in Japan since 2007>is able to send and recieve voice and data service in the UK and Japan>has the orange Walkman branding>it's buttons glow orange when in use>it has an aeroplane mode and an MP3 function, IIRC she listens to music on it during the flight to the UK<it's not available in black but dark blue
SE W61S -
http://ja.wikipedia.org/wiki/W61S>available in Japan since 2008>is able to send and recieve voice and data service in the UK and Japan>it has an aeroplane mode and an MP3 function>it's available in black>it has the same symbols on it's buttons<it's a Cybershot branded phone not a Walkman phone
<It's buttons aren't orange
OR
Kyoani just based it off the type of phone being released in Japan at the time.