The **Nr. 640 watch face** on the **OPPO Watch** boasts an **innovative** design that seamlessly integrates **digital** timekeeping with **12h** display options. This stylish face features interactive **subdials** that provide essential information such as battery levels and date, ensuring users stay informed with a quick glance.

Additionally, the **Nr. 640 watch face** makes use of the OPPO Watch’s **gyro** capabilities to enhance user interaction, offering a dynamic visual experience. Its efficient layout focuses on clarity and utility, displaying key details like workout metrics and notifications, all while maintaining an optimal battery performance.