Apple Watch Series 3 Update Causes Major Headache: 8-Step Process to Fix The Apple Watch Series 3, one of the oldest Apple Watches available in the market, has shown signs of struggles against the competition. The Smartwatch has a hard time installing watchOS 7.4. Photo : Justin Sullivan/Getty Images The Apple Watch Series 3, one of the oldest Apple Watches available in the market, has shown signs of struggles against the competition. It might be time to consider buying a new one. Apple Watch Series 3 made its debut in 2017 and was marketed as a smart device with fitness improvements. Back then, it was also advertised for being "more than just a watch," as it can perform basic tasks similar to most smartphone devices. It was sold at $199, categorized as one of Apple's affordable merchandise.