This Hamilton watch, Khaki Sub 660FT model, is made of steel. It has a robust ø30 mm case, with a rotating bezel to control the minutes when practicing water sports. The dark blue dial contrasts perfectly with the white Arabic numerals. Some parts of the dial feature luminescent material to display the time in low light conditions. This watch runs on quartz movement. As a detail, the date window is located at 3 o'clock, on a white background. The strap is made of steel and includes an easy-to-fit folding clasp. This Hamilton sports watch has been used and presents an acceptable appearance, as it has visible signs of use on both the metal and the sapphire crystal.