Production years are

I (2006) 500 pieces, Case number:6666, ID starts with PB,

J (2007) 700 pieces, Evolutions: Strap Interchangeability + Runner Lever + Nut + New metal bracelet attachment construction + New case back engraving with OP logo, Case number:6699, ID starts with PB,

K (2008) 500 pieces, Evolutions: Case disposed for new metal bracelet, Case number:6769, ID starts with PB,

All with Luminova,

unusual is the assembled upside-down crown protector lever