I cannot adjust the time. The watch lights up and has a new battery. The Vintage Hamilton Red LED Watch is a stylish timepiece featuring a stainless steel case and bracelet band, with a unique red dial and Arabic numeral indices. This men's watch, manufactured between 1970-1979, boasts a quartz movement and digital LED display, making it a functional yet fashionable accessory. With a classic rectangle shape and a 35mm case size, this Hamilton watch is a standout piece for casual or everyday wear. A true vintage gem from Switzerland, this watch is perfect for watch enthusiasts looking for a timeless yet modern timepiece.