Royal Oak 15500 vs 15400 Replicas: Practical Differences That Actually Matter
On paper, the Audemars Piguet Royal Oak 15500 and 15400 look almost interchangeable. In photos, many replicas appear identical at a glance. But for collectors who have handled both versions—especially in replica form—the differences are real, practical, and immediately noticeable once you know where to look. This article focuses on those differences only. No brand
