The Gucci G-Flat YA166507 is a 24mm stainless steel watch featuring an octagonal case inspired by 1970s architecture. It has a black galvanized dial with Roman numerals at 12 and 6 o'clock, complemented by diamond indexes. The watch is equipped with a quartz movement and is water-resistant up to 50 meters. The sapphire crystal has an anti-reflective coating, and the stainless steel bracelet fits wrist sizes from 120mm to 175mm. Reference number: YA166507.