Audemars Piguet Royal Oak?

Reference: 5402BC

Year: 1980; archive papers

Movement: Automatic movement with date display

Jewels: 36

Caliber: 2121

Case: 18ct white gold case 39mm in diameter.

Bezel: 18ct white gold

Crystal: Sapphire crystal

Dial: Black waffle iron dial with diamond hour markers

Bracelet: 18ct white gold with AP folding clasp

Condition: Preowned

Box & Papers: Original box and papers

Working condition: Fully functioning and operating on time.

Authenticity: 100% authentic