Parts of apple watch serie 1 (38mm) :

OLED ASSEMBLY, DIGITIZER (GLASS SEPARATION REQUIRED), POWER BUTTON FLEX CABLE (WITH METAL BRACKET), LCD FLEX CABLE, MICROPHONE FLEX, FRONT COVER GLASS, CABLE HOLDING BRACKET, LCD ADHESIVE TAPE, FORCE TOUCH SENSOR (WITH ADHESIVE), TESTER CABLE, OCA