Can Apple Watch call this machine?

You can call this machine. You can make a phone call on Apple Watch, but on one condition, it must be connected to iPhone, because the watch itself cannot be installed with a calling card to make a phone call.

Expansion: The first and second generation Apple Watch can't make phone calls, and the third and fourth generation Apple Watch can make phone calls. On September 3, 20 17, 17, Apple held the 60th anniversary conference of iPhone10, and released three generations of Apple Watch, which can make calls independently. AppleWatch's sapphire screen has two screen sizes. It supports dozens of functions, such as telephone, voice message, car connection, weather and flight information, map navigation, music playing, heartbeat measurement, step counting and so on. It is an omni-directional health and movement tracking device. AppleWatch only supports its own iPhone series models and does not support mobile phones of other systems.