Piaget Tank Dress-watch in 18k Yellow Gold ref. 90802Creating a simple yet distinctive watch without tipping into extravagance is no easy feat. Many designs miss the mark but not this elegant example from Piaget, renowned masters of ultra thin watchmaking. This stunning piece from the 1970s is one of those rare creations that perfectly captures the spirit of its time while remaining timelessly modern. Housed in an 18k yellow gold tank style case measuring 23mm x 29mm, it features a sapphire cabochon