patek philippe aquanaut 5167/A

patek philippe aquanaut collection was introduced in 1997 and to commemorate its 10th anniversary from its launch, the ref 5167/A was released in 2007. it is the largest aquanaut ever made (40mm) and has a redesigned rubber strap. i am lucky to be able to grab one today. am happy now especially mine has got their new PP seal (to replace the geneva seal they used before) on its see-through back.