My 302 was purchased new in 2008 and has the black case. I fly often which may helped the GPS battery to stay charged longer, not sure.
I just checked the NMEA sentence on the ground (no IGC log since I didn't fly or drive with it) and the NMEA sentence $GPRMC has the string 141214 after the coordinates. Today was 12/14/2014 and from what I gather this confirms my date is still correct.

Ramy