Automatic mechanical movement, 25 Jewels, beats at 21600 vph (operating), power reserve approximately 80 hours. Analog display features black dial with luminous silver-tone hands and prominent Arabic numeral hour markers (at both 3/9 and 12 o'clock). Minute markers are present at the five-minute intervals and encircle the outer rim of the dial. Includes day-of-the-week display visible through the sapphire crystal case back at the 12 o'clock position, date function shown prominently at the 6 o'clock position. Case is crafted from stainless steel with a matching bracelet, fixed stainless steel bezel, round shape measuring 42 mm in diameter and approximately 11 mm thick. Band width is 20 mm with an overall length of 7 inches (including clasp). Clasp mechanism is a fold-over type equipped with a push-button release. Sapphire crystal provides exceptional scratch resistance and clarity for the display components. Water resistant to 100 meters / 330 feet, suitable for recreational swimming but not professional diving. Swiss Made Hamilton Calibre H-40 movement.