LG Watch Urbane 2nd EDITION 3G User Manual page 95

3 Slide the Nano SIM card into the SIM card slot as shown in the figure.
Make sure the gold contact area on the card is facing downward.
4 Close the SIM card cover using the SIM cap opener as shown in the
figure below. Align the SIM cap opener to the hole located at the
bottom of the device and then turn clockwise until the SIM card cover
direction indicator reaches the "LOCK" position.
Basic
SIM Cap opener
22