This Universal Geneve Tri-Compax chronograph measures 34.5mm with square pushers and is in very clean condition. The dial on this watch has been expertly restored and really does look fantastic and has gently aged over the years. This watch has many functions including hours, minutes, seconds, day, date, month, moon phase, 30-minute counter, and 12-hour counter, which all function as they should after a recent cleaning. It is very important to always start the chronograph function with the top button and stop it with the top button. Only use the bottom button to reset the chronograph hand to 12:00, never to stop the chronograph function. Never set any of the functions such as the, day, date, month, etc. between the hours of 9:00pm to 2:00am to avoid damaging the movement. Please note all the blued steel hands are original to this watch.