Piaget, Polo series, model: 8131 C701, the entire watch is 175mm thick and 170mm thick when folded. The detachable links can adjust the length. This is an antique one-piece gold bracelet watch from the 1970s and 1980s. The entire watch is made of 18K solid gold, with an integrated design of the case and bracelet. The stepped links have a full texture and a heavy, precious metal feel when worn. The square case is paired with a gold brushed dial. The dot-shaped hour markers and sword-shaped hands are simple and neat. The crown is located at the 3 o 'clock position, and the overall lines are clean and sharp. The quartz movement keeps accurate time and does not require frequent winding.