No, the USB-C Magnetic Charging Dock for Apple Watch does not come with a power adapter. The box includes the USB-C Magnetic Charging Dock for Apple Watch and the user manual.

Connect the USB-C Magnetic Charging Dock for Apple Watch to a powered USB-C port, such as a laptop, tablet, or compatible wall adapter. If you use a wall adapter, use a USB-C PD power adapter that supports 18W or more.