It is a very short production period クラシックオートマチックシースルー back Ref.5917. Before the change to the REF.5910 see-through back model, are two types of dial, were. This individual is classic and simple atmosphere beautiful Guilloche Dial-in is. On the experience, I feel less number of. The movement with a Alemania-based Cal.591. Because REF.5930 is a Blancpain by Frederic Piguet based Alemania-based Breguet lovingly. It is a movement made an exquisite adjustment in the advanced technology of the Breguet. Accessories are also the good condition is recommended.