The Royal Oak 'Extra-Thin' is Audemars Piguet modern Jumbo - the design closely following the original lines as introduced with the 1972 5402. The case measures 39mm across and houses the tried & tested caliber 2121 movement. Reference 15202BC.OO.1240BC.01 was introduced at SIHH 2019. Initially it was a limited edition of 75 pieces, but this was later changed to 'boutique exclusive' sans limitation.
Slim (3.05mm) self-winding movement, originally created by Jaeger-LeCoultre and used by Audemars Piguet, Vacheron Constantin and Patek Philippe.