Reasons to Bid
The Audemars Piguet Royal Oak Ref. 5402 in A-serial form represents the earliest generation of the Royal Oak and is directly tied to the original 1972 release of Gérald Genta’s landmark design. As one of the first production batches, the A-series is especially sought after for its historical importance and its connection to the introduction of the luxury stainless-steel sports watch category. This 1977 example is one of the very last A-serial models made and features the original slim case and bracelet architecture, along with the Caliber 2121 automatic movement, known for its slim profile and reliable performance. For collectors seeking a Royal Oak that packs the model’s true origins, the A-serial 5402ST is the reference most closely associated with the beginning of the Royal Oak story. This specific example comes in great shape with a confirmation of the serial number and production year from Audemars Piguet.