Consigned directly from the original Swiss family, this reference 766 Duograph impresses by its great overall condition featuring a very well preserved case still showing great definition on the step down lugs, clear numbers on the outer caseback and a clear gold punchmark. The dial, although from the period, was exchanged as it features the Premier signature rather than the Duograph signature. Without a doubt one of the most collectible wristwatches produced by the firm.