Amazon.com: Mechanical Stop Watch 60 Second Sports 。Sasey. Mechanical stopwatch, portable sports chronograph with alarm, mechanical timer for sports, competitions, games, and also as a physics teaching aid. The minute hand counts 15 minutes per revolution, and the second hand counts 30 seconds per revolution, providing time display up to 6 hours. Made of high-quality stainless steel, durable and long-lasting. The product is compact and portable, taking up minimal space. It has a round dial with a metallic finish and a hanging loop on the start button for added convenience. The large dial provides clear readings, and the elegant design will complement any interior. New, without box.